diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 6ffeae4a..b0b394d8 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -4,7 +4,7 @@ repos:
     rev: 18.6b4
     hooks:
     - id: black
-      language_version: python3.7
+      language_version: python3.8
 -   repo: git://github.com/pre-commit/pre-commit-hooks
     rev: v2.0.0
     hooks:
@@ -19,10 +19,10 @@ repos:
     - id: no-commit-to-branch
     - id: trailing-whitespace
     - id: debug-statements
-      language_version: python3.7
+      language_version: python3.8
     - id: flake8
       log_file: '.artifacts/flake8.log'
-      language_version: python3.7
+      language_version: python3.8
     - id: requirements-txt-fixer
       args: ['requirements-base.txt', 'requirements-dev.txt', 'requirements-test.txt']
 # -   repo: https://github.com/pre-commit/mirrors-mypy
diff --git a/.python-version b/.python-version
index afc17dca..e6389a2b 100644
--- a/.python-version
+++ b/.python-version
@@ -1,2 +1,2 @@
-3.7.2
+3.8.1
 2.7.14
diff --git a/.travis.yml b/.travis.yml
index fb0d5435..469bbbb6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,12 +4,12 @@ branches:
     - trying
 language: python
 sudo: true
-dist: xenial
+dist: buster
 services:
   - redis-server
   - postgresql
 python:
-  - '3.7'
+  - '3.8'
 cache:
   yarn: true
   directories:
diff --git a/Dockerfile b/Dockerfile
index 3c0a7fa3..9d208710 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use an official Python runtime as a parent image
-FROM python:3.7-slim-stretch
+FROM python:3.8.2-slim-buster
 
 # add our user and group first to make sure their IDs get assigned consistently
 RUN groupadd -r zeus && useradd -r -m -g zeus zeus
@@ -29,6 +29,7 @@ RUN set -ex \
   libpq-dev \
   libxml2-dev \
   libxslt-dev \
+  libz-dev \
   openssl \
   ssh \
   wget \
diff --git a/Makefile b/Makefile
index 315f0e0c..fd8121a4 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ upgrade: install-requirements
 	poetry run zeus db upgrade
 
 setup-git:
-	pip install "pre-commit>=1.12.0,<1.13.0"
+	pip install "pre-commit>=2.2.0,<2.3.0"
 	pre-commit install
 	git config branch.autosetuprebase always
 	git config --bool flake8.strict true
diff --git a/README.md b/README.md
index 2df1dd80..fc73684a 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ They should be submitted with the `application/x-webpack-stats+json` type.
 
 ### Requirements
 
-- Python 3.7
+- Python 3.8
 - Node (and [Volta](https://volta.sh/))
 - Postgres 9.4+
 
diff --git a/poetry.lock b/poetry.lock
index 34af5af9..e51babe7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -15,16 +15,18 @@ description = "Async http client/server framework (asyncio)"
 name = "aiohttp"
 optional = false
 python-versions = ">=3.5.3"
-version = "3.3.2"
+version = "3.6.2"
 
 [package.dependencies]
 async-timeout = ">=3.0,<4.0"
 attrs = ">=17.3.0"
 chardet = ">=2.0,<4.0"
-idna-ssl = ">=1.0"
-multidict = ">=4.0,<5.0"
+multidict = ">=4.5,<5.0"
 yarl = ">=1.0,<2.0"
 
+[package.extras]
+speedups = ["aiodns", "brotlipy", "cchardet"]
+
 [[package]]
 category = "main"
 description = "asyncio (PEP 3156) Redis support"
@@ -43,7 +45,7 @@ description = "A database migration tool for SQLAlchemy."
 name = "alembic"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.4.0"
+version = "1.4.1"
 
 [package.dependencies]
 Mako = "*"
@@ -294,8 +296,8 @@ category = "main"
 description = "Composable command line interface toolkit"
 name = "click"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "7.0"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "7.1.1"
 
 [[package]]
 category = "main"
@@ -359,7 +361,7 @@ description = "Decorators for Humans"
 name = "decorator"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*"
-version = "4.4.1"
+version = "4.4.2"
 
 [[package]]
 category = "main"
@@ -588,34 +590,7 @@ description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.8"
-
-[[package]]
-category = "main"
-description = "Patch ssl.match_hostname for Unicode(idna) domains support"
-name = "idna-ssl"
-optional = false
-python-versions = "*"
-version = "1.1.0"
-
-[package.dependencies]
-idna = ">=2.0"
-
-[[package]]
-category = "main"
-description = "Read metadata from Python packages"
-marker = "python_version < \"3.8\""
-name = "importlib-metadata"
-optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
-version = "1.5.0"
-
-[package.dependencies]
-zipp = ">=0.5"
-
-[package.extras]
-docs = ["sphinx", "rst.linker"]
-testing = ["packaging", "importlib-resources"]
+version = "2.9"
 
 [[package]]
 category = "main"
@@ -623,7 +598,7 @@ description = "IPython: Productive Interactive Computing"
 name = "ipython"
 optional = false
 python-versions = ">=3.6"
-version = "7.12.0"
+version = "7.13.0"
 
 [package.dependencies]
 appnope = "*"
@@ -639,7 +614,7 @@ setuptools = ">=18.5"
 traitlets = ">=4.2"
 
 [package.extras]
-all = ["ipyparallel", "requests", "notebook", "qtconsole", "ipywidgets", "pygments", "nbconvert", "testpath", "Sphinx (>=1.3)", "nbformat", "numpy (>=1.14)", "ipykernel", "nose (>=0.10.1)"]
+all = ["numpy (>=1.14)", "testpath", "notebook", "nose (>=0.10.1)", "nbconvert", "requests", "ipywidgets", "qtconsole", "ipyparallel", "Sphinx (>=1.3)", "pygments", "nbformat", "ipykernel"]
 doc = ["Sphinx (>=1.3)"]
 kernel = ["ipykernel"]
 nbconvert = ["nbconvert"]
@@ -708,10 +683,6 @@ pyrsistent = ">=0.14.0"
 setuptools = "*"
 six = ">=1.11.0"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = "*"
-
 [package.extras]
 format = ["idna", "jsonpointer (>1.13)", "rfc3987", "strict-rfc3339", "webcolors"]
 format_nongpl = ["idna", "jsonpointer (>1.13)", "webcolors", "rfc3986-validator (>0.1.0)", "rfc3339-validator"]
@@ -722,15 +693,11 @@ description = "Messaging library for Python."
 name = "kombu"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "4.6.7"
+version = "4.6.8"
 
 [package.dependencies]
 amqp = ">=2.5.2,<2.6"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.18"
-
 [package.extras]
 azureservicebus = ["azure-servicebus (>=0.21.1)"]
 azurestoragequeues = ["azure-storage-queue"]
@@ -775,7 +742,7 @@ description = "A super-fast templating language that borrows the  best ideas fro
 name = "mako"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.1.1"
+version = "1.1.2"
 
 [package.dependencies]
 MarkupSafe = ">=0.9.2"
@@ -798,11 +765,11 @@ description = "A lightweight library for converting complex datatypes to and fro
 name = "marshmallow"
 optional = false
 python-versions = ">=3.5"
-version = "3.5.0"
+version = "3.5.1"
 
 [package.extras]
 dev = ["pytest", "pytz", "simplejson", "mypy (0.761)", "flake8 (3.7.9)", "flake8-bugbear (20.1.4)", "pre-commit (>=1.20,<3.0)", "tox"]
-docs = ["sphinx (2.4.2)", "sphinx-issues (1.2.0)", "alabaster (0.7.12)", "sphinx-version-warning (1.1.2)"]
+docs = ["sphinx (2.4.3)", "sphinx-issues (1.2.0)", "alabaster (0.7.12)", "sphinx-version-warning (1.1.2)"]
 lint = ["mypy (0.761)", "flake8 (3.7.9)", "flake8-bugbear (20.1.4)", "pre-commit (>=1.20,<3.0)"]
 tests = ["pytest", "pytz", "simplejson"]
 
@@ -828,7 +795,7 @@ description = "multidict implementation"
 name = "multidict"
 optional = false
 python-versions = ">=3.5"
-version = "4.7.4"
+version = "4.7.5"
 
 [[package]]
 category = "main"
@@ -861,7 +828,7 @@ description = "Core utilities for Python packages"
 name = "packaging"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.1"
+version = "20.3"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
@@ -873,7 +840,7 @@ description = "A Python Parser"
 name = "parso"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.6.1"
+version = "0.6.2"
 
 [package.extras]
 testing = ["docopt", "pytest (>=3.0.7)"]
@@ -914,11 +881,6 @@ optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 version = "0.13.1"
 
-[package.dependencies]
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
-
 [package.extras]
 dev = ["pre-commit", "tox"]
 
@@ -927,8 +889,8 @@ category = "main"
 description = "Library for building powerful interactive command lines in Python"
 name = "prompt-toolkit"
 optional = false
-python-versions = ">=3.6"
-version = "3.0.3"
+python-versions = ">=3.6.1"
+version = "3.0.4"
 
 [package.dependencies]
 wcwidth = "*"
@@ -950,8 +912,8 @@ category = "main"
 description = "psycopg2 - Python-PostgreSQL Database Adapter"
 name = "psycopg2-binary"
 optional = false
-python-versions = "*"
-version = "2.7.7"
+python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
+version = "2.8.4"
 
 [[package]]
 category = "main"
@@ -1014,10 +976,11 @@ version = "2.3.1"
 [[package]]
 category = "main"
 description = "C parser in Python"
+marker = "platform_python_implementation != \"PyPy\""
 name = "pycparser"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.19"
+version = "2.20"
 
 [[package]]
 category = "dev"
@@ -1032,8 +995,8 @@ category = "main"
 description = "Pygments is a syntax highlighting package written in Python."
 name = "pygments"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.5.2"
+python-versions = ">=3.5"
+version = "2.6.1"
 
 [[package]]
 category = "main"
@@ -1088,10 +1051,6 @@ pluggy = ">=0.12,<1.0"
 py = ">=1.5.0"
 wcwidth = "*"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
-
 [package.extras]
 checkqa-mypy = ["mypy (v0.761)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
@@ -1232,20 +1191,14 @@ description = "Python HTTP for Humans."
 name = "requests"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.22.0"
+version = "2.23.0"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
-chardet = ">=3.0.2,<3.1.0"
+chardet = ">=3.0.2,<4"
+idna = ">=2.5,<3"
 urllib3 = ">=1.21.1,<1.25.0 || >1.25.0,<1.25.1 || >1.25.1,<1.26"
 
-[[package.dependencies.idna]]
-version = ">=2.5,<2.9"
-
-[[package.dependencies.idna]]
-optional = true
-version = ">=2.0.0"
-
 [package.dependencies.cryptography]
 optional = true
 version = ">=1.3.4"
@@ -1255,7 +1208,7 @@ optional = true
 version = ">=0.14"
 
 [package.extras]
-security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)"]
+security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
 socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
 
 [[package]]
@@ -1279,7 +1232,7 @@ description = "A utility library for mocking out the `requests` Python library."
 name = "responses"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.10.9"
+version = "0.10.12"
 
 [package.dependencies]
 requests = ">=2.0"
@@ -1305,7 +1258,7 @@ description = "Python client for Sentry (https://getsentry.com)"
 name = "sentry-sdk"
 optional = false
 python-versions = "*"
-version = "0.14.1"
+version = "0.14.2"
 
 [package.dependencies]
 certifi = "*"
@@ -1358,7 +1311,7 @@ description = "Retry code until it succeeds"
 name = "tenacity"
 optional = false
 python-versions = "*"
-version = "6.0.0"
+version = "6.1.0"
 
 [package.dependencies]
 six = ">=1.9.0"
@@ -1498,25 +1451,12 @@ version = "1.2.6"
 idna = ">=2.0"
 multidict = ">=4.0"
 
-[[package]]
-category = "main"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-marker = "python_version < \"3.8\""
-name = "zipp"
-optional = false
-python-versions = ">=3.6"
-version = "3.0.0"
-
-[package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["jaraco.itertools", "func-timeout"]
-
 [extras]
 test = ["pytest", "pytest-aiohttp", "pytest-cov", "pytest-mock", "pytest-responses", "pytest-xdist", "responses"]
 
 [metadata]
-content-hash = "da7d3c297b480ed915922e5f07eb2d0ac17b34f47a5b07fcce5c9ecc86aee09a"
-python-versions = "~3.7"
+content-hash = "9ca85f2439fc34fce6af8819d3bfa0438cea0952ca8cfaf3c0d4ba976d4c570a"
+python-versions = "~3.8"
 
 [metadata.files]
 aiodns = [
@@ -1524,28 +1464,25 @@ aiodns = [
     {file = "aiodns-1.1.1.tar.gz", hash = "sha256:d8677adc679ce8d0ef706c14d9c3d2f27a0e0cc11d59730cdbaf218ad52dd9ea"},
 ]
 aiohttp = [
-    {file = "aiohttp-3.3.2-cp35-cp35m-macosx_10_10_x86_64.whl", hash = "sha256:dd81d85a342edf3d2a388e2f24d9facebc9c04550043888f970ee2f228c93059"},
-    {file = "aiohttp-3.3.2-cp35-cp35m-macosx_10_11_x86_64.whl", hash = "sha256:1a112a1fdf3802b7f2b182e22e51d71e4a8fa7387d0d38e79a268921b869e384"},
-    {file = "aiohttp-3.3.2-cp35-cp35m-macosx_10_12_x86_64.whl", hash = "sha256:601e8e83123b4d423a9dfddf7d6943f4f520651a78ffcd50c99d065136c7ff7b"},
-    {file = "aiohttp-3.3.2-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:f52e7287eb9286a1e91e4c67c207c2573147fbaddc68f70efb5aeee5d1992f2e"},
-    {file = "aiohttp-3.3.2-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:7de2c9e445a5d257935011268202338538abef1aaff341a4733eca56419ca6f6"},
-    {file = "aiohttp-3.3.2-cp35-cp35m-win32.whl", hash = "sha256:ff1447c84a02b9cd5dd3a9332d1fb181a4386c3625765bb5caf1cfbc210ab3f9"},
-    {file = "aiohttp-3.3.2-cp35-cp35m-win_amd64.whl", hash = "sha256:620f19ba7628b70b177f5c2e6a55a6fd6e7c8591cde38c3f8f52551733d31b66"},
-    {file = "aiohttp-3.3.2-cp36-cp36m-macosx_10_10_x86_64.whl", hash = "sha256:fe7b2972ff7e779e812f974aa5695edc328ecf559ceeea887ac46f06f090ad4c"},
-    {file = "aiohttp-3.3.2-cp36-cp36m-macosx_10_11_x86_64.whl", hash = "sha256:c833aa6f4c9ac3e3eb843e3d999bae51339ad33a937303f43ce78064e61cb4b6"},
-    {file = "aiohttp-3.3.2-cp36-cp36m-macosx_10_12_x86_64.whl", hash = "sha256:550b4a0788500f6d00f41b7fdd9fcce6d78f99706a7b2f6f81d4d331c7ca468e"},
-    {file = "aiohttp-3.3.2-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:ae7501cc6a6c37b8d4774bf2218c37be47fe42019a2570e8510fc2044e59d573"},
-    {file = "aiohttp-3.3.2-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:70d56c784da1239c89d39fefa166fd429306dada641178389be4184a9c04e501"},
-    {file = "aiohttp-3.3.2-cp36-cp36m-win32.whl", hash = "sha256:33aa7c937ebaf063a860cbb0c263a771b33333a84965c6148eeafe64fb4e29ca"},
-    {file = "aiohttp-3.3.2-cp36-cp36m-win_amd64.whl", hash = "sha256:96bb80b659cc2bafa160f3f0c346ce7fc10de1ffec4908d7f9690797f155f658"},
-    {file = "aiohttp-3.3.2.tar.gz", hash = "sha256:f20deec7a3fbaec7b5eb7ad99878427ad2ee4cc16a46732b705e8121cbb3cc12"},
+    {file = "aiohttp-3.6.2-cp35-cp35m-macosx_10_13_x86_64.whl", hash = "sha256:1e984191d1ec186881ffaed4581092ba04f7c61582a177b187d3a2f07ed9719e"},
+    {file = "aiohttp-3.6.2-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:50aaad128e6ac62e7bf7bd1f0c0a24bc968a0c0590a726d5a955af193544bcec"},
+    {file = "aiohttp-3.6.2-cp36-cp36m-macosx_10_13_x86_64.whl", hash = "sha256:65f31b622af739a802ca6fd1a3076fd0ae523f8485c52924a89561ba10c49b48"},
+    {file = "aiohttp-3.6.2-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:ae55bac364c405caa23a4f2d6cfecc6a0daada500274ffca4a9230e7129eac59"},
+    {file = "aiohttp-3.6.2-cp36-cp36m-win32.whl", hash = "sha256:344c780466b73095a72c616fac5ea9c4665add7fc129f285fbdbca3cccf4612a"},
+    {file = "aiohttp-3.6.2-cp36-cp36m-win_amd64.whl", hash = "sha256:4c6efd824d44ae697814a2a85604d8e992b875462c6655da161ff18fd4f29f17"},
+    {file = "aiohttp-3.6.2-cp37-cp37m-macosx_10_13_x86_64.whl", hash = "sha256:2f4d1a4fdce595c947162333353d4a44952a724fba9ca3205a3df99a33d1307a"},
+    {file = "aiohttp-3.6.2-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:6206a135d072f88da3e71cc501c59d5abffa9d0bb43269a6dcd28d66bfafdbdd"},
+    {file = "aiohttp-3.6.2-cp37-cp37m-win32.whl", hash = "sha256:b778ce0c909a2653741cb4b1ac7015b5c130ab9c897611df43ae6a58523cb965"},
+    {file = "aiohttp-3.6.2-cp37-cp37m-win_amd64.whl", hash = "sha256:32e5f3b7e511aa850829fbe5aa32eb455e5534eaa4b1ce93231d00e2f76e5654"},
+    {file = "aiohttp-3.6.2-py3-none-any.whl", hash = "sha256:460bd4237d2dbecc3b5ed57e122992f60188afe46e7319116da5eb8a9dfedba4"},
+    {file = "aiohttp-3.6.2.tar.gz", hash = "sha256:259ab809ff0727d0e834ac5e8a283dc5e3e0ecc30c4d80b3cd17a4139ce1f326"},
 ]
 aioredis = [
     {file = "aioredis-1.1.0-py3-none-any.whl", hash = "sha256:9ffa0f9ea4076e5caedf55f095ea758f5137c7d1cd06cd9916081f4320fdaa4d"},
     {file = "aioredis-1.1.0.tar.gz", hash = "sha256:d3adfc3295a91a97cab472751e26ff85949566a131cebb27a778e49aa0638c1a"},
 ]
 alembic = [
-    {file = "alembic-1.4.0.tar.gz", hash = "sha256:2df2519a5b002f881517693b95626905a39c5faf4b5a1f94de4f1441095d1d26"},
+    {file = "alembic-1.4.1.tar.gz", hash = "sha256:791a5686953c4b366d3228c5377196db2f534475bb38d26f70eb69668efd9028"},
 ]
 amqp = [
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-zipp = [
-    {file = "zipp-3.0.0-py3-none-any.whl", hash = "sha256:12248a63bbdf7548f89cb4c7cda4681e537031eda29c02ea29674bc6854460c2"},
-    {file = "zipp-3.0.0.tar.gz", hash = "sha256:7c0f8e91abc0dc07a5068f315c52cb30c66bfbc581e5b50704c8a2f6ebae794a"},
-]
diff --git a/pyproject.toml b/pyproject.toml
index d015edcf..7f1b1f75 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,9 +8,9 @@ authors = ["David Cramer <dcramer@gmail.com>"]
 license = "Apache-2.0"
 
 [tool.poetry.dependencies]
-python = "~3.7"
+python = "~3.8"
 aiodns = "~1.1.1"
-aiohttp = "~3.3.2"
+aiohttp = "~3.6.2"
 aioredis = "~1.1.0"
 asyncpg = "^0.20.0"
 blinker = "~1.4"
@@ -35,7 +35,7 @@ lru-dict = "^1.1.6"
 lxml = "~4.2.3"
 marshmallow = "~3"
 nplusone = "~0.8.1"
-psycopg2-binary = "~2.7.5"
+psycopg2-binary = "~2.8.4"
 python-dateutil = "~2.6.1"
 redis = "~3.2.0"
 sentry-sdk = { version = "~0.14.1" }
@@ -47,7 +47,7 @@ werkzeug = "~0.14.1"
 yarl = "~1.2.6"
 requests = { version = "^2.22", extras = [ "security" ] }
 requests-oauthlib = "~0.8.0"
-pytest = { version = "~5", optional = true }
+pytest = { version = "~5.3.5", optional = true }
 pytest-aiohttp = { version = "~0.3.0", optional = true }
 pytest-cov = { version = "~2.8.1", optional = true }
 pytest-mock = { version = "~2.0.0", optional = true }
diff --git a/tests/zeus/vcs/backends/test_git.py b/tests/zeus/vcs/backends/test_git.py
index a43c712b..dbb22313 100644
--- a/tests/zeus/vcs/backends/test_git.py
+++ b/tests/zeus/vcs/backends/test_git.py
@@ -7,14 +7,6 @@
 from zeus.vcs.backends.git import GitVcs
 
 
-def _get_last_two_revisions(marker, revisions):
-    if marker in revisions[0].branches:
-        return revisions[0], revisions[1]
-
-    else:
-        return revisions[1], revisions[0]
-
-
 def _set_author(remote_path, name, email):
     check_call(
         'cd {0} && git config --replace-all "user.name" "{1}"'.format(
@@ -41,7 +33,7 @@ def test_get_default_revision(git_repo_config, vcs):
     assert vcs.get_default_revision() == "master"
 
 
-def test_log_with_authors(git_repo_config, vcs):
+async def test_log_with_authors(git_repo_config, vcs):
     # Create a commit with a new author
     _set_author(git_repo_config.remote_path, "Another Committer", "ac@d.not.zm.exist")
     check_call(
@@ -49,36 +41,36 @@ def test_log_with_authors(git_repo_config, vcs):
         % git_repo_config.remote_path,
         shell=True,
     )
-    vcs.clone()
-    vcs.update()
-    revisions = list(vcs.log())
+    await vcs.clone()
+    await vcs.update()
+    revisions = await vcs.log()
     assert len(revisions) == 3
 
-    revisions = list(vcs.log(author="Another Committer"))
+    revisions = await vcs.log(author="Another Committer")
     assert len(revisions) == 1
     assert_revision(
         revisions[0], author="Another Committer <ac@d.not.zm.exist>", message="bazzy"
     )
 
-    revisions = list(vcs.log(author="ac@d.not.zm.exist"))
+    revisions = await vcs.log(author="ac@d.not.zm.exist")
     assert len(revisions) == 1
     assert_revision(
         revisions[0], author="Another Committer <ac@d.not.zm.exist>", message="bazzy"
     )
 
-    revisions = list(vcs.log(branch=vcs.get_default_revision(), author="Foo"))
+    revisions = await vcs.log(branch=vcs.get_default_revision(), author="Foo")
     assert len(revisions) == 2
 
 
-def test_log_throws_errors_when_needed(vcs):
+async def test_log_throws_errors_when_needed(vcs):
     try:
-        next(vcs.log(parent="HEAD", branch="master"))
+        await vcs.log(parent="HEAD", branch="master")
         pytest.fail("log passed with both branch and master specified")
     except ValueError:
         pass
 
 
-def test_log_with_branches(git_repo_config, vcs):
+async def test_log_with_branches(git_repo_config, vcs):
     # Create another branch and move it ahead of the master branch
     remote_path = git_repo_config.remote_path
     check_call("cd %s && git checkout -b B2" % remote_path, shell=True)
@@ -99,66 +91,43 @@ def test_log_with_branches(git_repo_config, vcs):
         % (remote_path,),
         shell=True,
     )
-    vcs.clone()
-    vcs.update()
-
-    # Ensure git log normally includes commits from all branches
-    revisions = list(vcs.log())
-    assert len(revisions) == 4
-
-    # Git timestamps are only accurate to the second. But since this test
-    #   creates these commits so close to each other, there's a race
-    #   condition here. Ultimately, we only care that both commits appear
-    #   last in the log, so allow them to be out of order.
-    last_rev, previous_rev = _get_last_two_revisions("B3", revisions)
-    assert_revision(last_rev, message="3rd branch", branches=["B3"])
-    assert_revision(previous_rev, message="second branch commit", branches=["B2"])
-
-    # Note that the list of branches here differs from the hg version
-    #   because hg only returns the branch name from the changeset, which
-    #   does not include any ancestors.
-    assert_revision(
-        revisions[3], message="test", branches=[vcs.get_default_revision(), "B2", "B3"]
-    )
+    await vcs.clone()
+    await vcs.update()
 
     # Ensure git log with B3 only
-    revisions = list(vcs.log(branch="B3"))
+    revisions = await vcs.log(branch="B3")
     assert len(revisions) == 3
-    assert_revision(revisions[0], message="3rd branch", branches=["B3"])
-    assert_revision(
-        revisions[2], message="test", branches=[vcs.get_default_revision(), "B2", "B3"]
-    )
+    assert_revision(revisions[0], message="3rd branch")
+    assert_revision(revisions[2], message="test")
 
     # Sanity check master
     check_call(
         "cd %s && git checkout %s" % (remote_path, vcs.get_default_revision()),
         shell=True,
     )
-    revisions = list(vcs.log(branch=vcs.get_default_revision()))
+    revisions = await vcs.log(branch=vcs.get_default_revision())
     assert len(revisions) == 2
 
 
-def test_simple(vcs):
-    vcs.clone()
-    vcs.update()
-    revision = next(vcs.log(parent="HEAD", limit=1))
+async def test_simple(vcs):
+    await vcs.clone()
+    await vcs.update()
+    revision = (await vcs.log(parent="HEAD", limit=1))[0]
     assert len(revision.sha) == 40
     assert_revision(revision, author="Foo Bar <foo@example.com>", message="biz\nbaz\n")
-    revisions = list(vcs.log())
+    revisions = await vcs.log()
     assert len(revisions) == 2
     assert revisions[0].message == "biz\nbaz\n"
     assert revisions[0].author == "Foo Bar <foo@example.com>"
     assert revisions[0].committer == "Foo Bar <foo@example.com>"
     assert revisions[0].parents == [revisions[1].sha]
     assert revisions[0].author_date == revisions[0].committer_date is not None
-    assert revisions[0].branches == ["master"]
     assert revisions[1].message == "test\nlol\n"
     assert revisions[1].author == "Foo Bar <foo@example.com>"
     assert revisions[1].committer == "Foo Bar <foo@example.com>"
     assert revisions[1].parents == []
     assert revisions[1].author_date == revisions[1].committer_date is not None
-    assert revisions[1].branches == ["master"]
-    diff = vcs.export(revisions[0].sha)
+    diff = await vcs.export(revisions[0].sha)
     assert (
         diff
         == """diff --git a/BAR b/BAR
@@ -166,57 +135,42 @@ def test_simple(vcs):
 index 0000000..e69de29
 """
     )
-    revisions = list(vcs.log(offset=0, limit=1))
+    revisions = await vcs.log(offset=0, limit=1)
     assert len(revisions) == 1
     assert revisions[0].message == "biz\nbaz\n"
 
-    revisions = list(vcs.log(offset=1, limit=1))
+    revisions = await vcs.log(offset=1, limit=1)
     assert len(revisions) == 1
     assert revisions[0].message == "test\nlol\n"
 
 
-def test_is_child_parent(vcs):
-    vcs.clone()
-    vcs.update()
-    revisions = list(vcs.log())
-    assert vcs.is_child_parent(
-        child_in_question=revisions[0].sha, parent_in_question=revisions[1].sha
-    )
-    assert (
-        vcs.is_child_parent(
-            child_in_question=revisions[1].sha, parent_in_question=revisions[0].sha
-        )
-        is False
-    )
-
-
-def test_get_known_branches(git_repo_config, vcs):
-    vcs.clone()
-    vcs.update()
+async def test_get_known_branches(git_repo_config, vcs):
+    await vcs.clone()
+    await vcs.update()
 
-    branches = vcs.get_known_branches()
+    branches = await vcs.get_known_branches()
     assert len(branches) == 1
     assert "master" in branches
 
     check_call(
         "cd %s && git checkout -B test_branch" % git_repo_config.remote_path, shell=True
     )
-    vcs.update()
-    branches = vcs.get_known_branches()
+    await vcs.update()
+    branches = await vcs.get_known_branches()
     assert len(branches) == 2
     assert "test_branch" in branches
 
 
-def test_show(git_repo_config, vcs):
+async def test_show(git_repo_config, vcs):
     check_call(
         'cd %s && echo "bar" > BAZ && git add BAZ && git commit -m "bazzy"'
         % git_repo_config.remote_path,
         shell=True,
     )
 
-    vcs.clone()
-    vcs.update()
-    revisions = list(vcs.log())
+    await vcs.clone()
+    await vcs.update()
+    revisions = await vcs.log()
 
-    result = vcs.show(revisions[0].sha, "BAZ")
+    result = await vcs.show(revisions[0].sha, "BAZ")
     assert result == "bar\n"
diff --git a/tests/zeus/vcs/test_api.py b/tests/zeus/vcs/test_api.py
index 116e1b41..8e06644f 100644
--- a/tests/zeus/vcs/test_api.py
+++ b/tests/zeus/vcs/test_api.py
@@ -1,11 +1,12 @@
 import pytest
 
 from datetime import datetime
+from unittest.mock import AsyncMock
 from uuid import UUID
 
 from zeus import auth
 from zeus.exceptions import UnknownRevision
-from zeus.vcs.backends.git import LazyGitRevisionResult
+from zeus.vcs.backends.git import RevisionResult
 
 
 class ApiHelper(object):
@@ -56,23 +57,24 @@ async def test_log_basic(client, default_repo_id):
 
 
 async def test_log_fetches_on_retry(client, mocker, default_repo_id):
-    vcs_log = mocker.patch("zeus.vcs.backends.git.GitVcs.log")
-    vcs_log.side_effect = [
-        UnknownRevision("master"),
-        iter(
-            [
-                LazyGitRevisionResult(
-                    vcs=mocker.Mock(),
-                    sha="c" * 40,
-                    author="Foo Bar <foo@example.com>",
-                    committer="Biz Baz <baz@example.com>",
-                    author_date=datetime(2013, 9, 19, 22, 15, 22),
-                    committer_date=datetime(2013, 9, 19, 22, 15, 23),
-                    message="Hello world!",
-                )
+    vcs_log = mocker.patch(
+        "zeus.vcs.backends.git.GitVcs.log",
+        AsyncMock(
+            side_effect=[
+                UnknownRevision("master"),
+                [
+                    RevisionResult(
+                        sha="c" * 40,
+                        author="Foo Bar <foo@example.com>",
+                        committer="Biz Baz <baz@example.com>",
+                        author_date=datetime(2013, 9, 19, 22, 15, 22),
+                        committer_date=datetime(2013, 9, 19, 22, 15, 23),
+                        message="Hello world!",
+                    )
+                ],
             ]
         ),
-    ]
+    )
 
     resp = await ApiHelper(client).get("/stmt/log", repo_id=default_repo_id)
     assert resp.status == 200, resp.content
diff --git a/zeus/vcs/api.py b/zeus/vcs/api.py
index 50ec7464..9c0ef84a 100644
--- a/zeus/vcs/api.py
+++ b/zeus/vcs/api.py
@@ -114,12 +114,12 @@ async def stmt_log(request, vcs, repo_id):
     limit = int(request.query.get("limit") or 100)
 
     try:
-        log_results = list(
-            vcs.log(parent=parent, branch=branch, offset=offset, limit=limit)
+        log_results = await vcs.log(
+            parent=parent, branch=branch, offset=offset, limit=limit
         )
     except UnknownRevision:
         # we're running a lazy update here if it didnt already exist
-        log_results = vcs.log(
+        log_results = await vcs.log(
             parent=parent,
             branch=branch,
             offset=offset,
@@ -156,7 +156,7 @@ async def stmt_export(request, vcs, repo_id):
     if not sha:
         return json_response({"error": "missing_arg"}, status=403)
 
-    return json_response({"export": vcs.export(sha)})
+    return json_response({"export": await vcs.export(sha)})
 
 
 @span("stmt.show")
@@ -170,14 +170,14 @@ async def stmt_show(request, vcs, repo_id):
     if not filename:
         return json_response({"error": "missing_arg"}, status=403)
 
-    return json_response({"show": vcs.show(sha, filename)})
+    return json_response({"show": await vcs.show(sha, filename)})
 
 
 @span("stmt.branches")
 @api_request
 @log_errors
 async def stmt_branches(request, vcs, repo_id):
-    return json_response({"branches": vcs.get_known_branches()})
+    return json_response({"branches": await vcs.get_known_branches()})
 
 
 def register_api_routes(app):
diff --git a/zeus/vcs/asserts.py b/zeus/vcs/asserts.py
index 3cb1a785..6c6579ac 100644
--- a/zeus/vcs/asserts.py
+++ b/zeus/vcs/asserts.py
@@ -1,15 +1,11 @@
-def assert_revision(revision, author=None, message=None, branches=None):
+def assert_revision(revision, author=None, message=None):
     """Asserts values of the given fields in the provided revision.
 
     :param revision: The revision to validate
     :param author: that must be present in the ``revision``
     :param message: message substring that must be present in ``revision``
-    :param subject: exact subject that must be present in the ``revision``
-    :param branches: all the branches that must be in the ``revision``
     """
     if author:
         assert author == revision.author
     if message:
         assert message in revision.message
-    if branches:
-        assert sorted(branches) == sorted(revision.branches)
diff --git a/zeus/vcs/backends/base.py b/zeus/vcs/backends/base.py
index 2016bd2c..684bd915 100644
--- a/zeus/vcs/backends/base.py
+++ b/zeus/vcs/backends/base.py
@@ -1,8 +1,8 @@
+import asyncio
 import os
 import os.path
 import re
 
-from subprocess import Popen, PIPE
 from typing import Iterator, List, Optional, Tuple
 from uuid import UUID
 
@@ -17,7 +17,6 @@
 
 class RevisionResult(object):
     parents = None
-    branches = None
     repository_id = None
 
     def __init__(
@@ -29,7 +28,6 @@ def __init__(
         committer: str = None,
         committer_date=None,
         parents: Optional[List[str]] = None,
-        branches: Optional[List[str]] = None,
         repository_id: UUID = None,
         _author_cache: dict = None,
     ):
@@ -41,8 +39,6 @@ def __init__(
         self.committer_date = committer_date or author_date
         if parents is not None:
             self.parents = parents
-        if branches is not None:
-            self.branches = branches
         if repository_id is not None:
             self.repository_id = repository_id
 
@@ -126,7 +122,7 @@ def __init__(self, id: str, path: str, url: str, username: Optional[str] = None)
     def get_default_env(self) -> dict:
         return {}
 
-    def run(self, cmd, timeout=None, **kwargs) -> str:
+    async def run(self, cmd, timeout=None, **kwargs) -> str:
         if self.exists():
             kwargs.setdefault("cwd", self.path)
 
@@ -141,32 +137,32 @@ def run(self, cmd, timeout=None, **kwargs) -> str:
             env[key] = value
 
         kwargs["env"] = env
-        kwargs["stdout"] = PIPE
-        kwargs["stderr"] = PIPE
+        kwargs["stdout"] = asyncio.subprocess.PIPE
+        kwargs["stderr"] = asyncio.subprocess.PIPE
 
-        proc = Popen(cmd, **kwargs)
-        (stdout, stderr) = proc.communicate(timeout=timeout)
+        proc = await asyncio.create_subprocess_exec(*cmd, **kwargs)
+        (stdout, stderr) = await asyncio.wait_for(proc.communicate(), timeout)
         if proc.returncode != 0:
             raise CommandError(cmd[0], proc.returncode, stdout, stderr)
 
-        return stdout.decode("utf-8")
+        return stdout.decode()
 
     def exists(self) -> bool:
         return os.path.exists(self.path)
 
-    def clone(self):
+    async def clone(self):
         raise NotImplementedError
 
-    def update(self, allow_cleanup=False):
+    async def update(self, allow_cleanup=False):
         raise NotImplementedError
 
-    def ensure(self, update_if_exists=True):
+    async def ensure(self, update_if_exists=True):
         if not self.exists():
-            self.clone()
+            await self.clone()
         elif update_if_exists:
-            self.update()
+            await self.update()
 
-    def log(
+    async def log(
         self,
         parent: str = None,
         branch: str = None,
@@ -184,10 +180,6 @@ def log(
         If branch is set, all revisions in the branch AND any ancestor commits
             are returned.
 
-        For any revisions returned, the list of associated branches returned is
-        tool specific and may or may not include ancestor branch names. See tool
-        implementations for exact behavior of this function.
-
         :param parent: Parent at which revision search begins.
         :param branch: Branch name the revision must be associated with.
         :param author: The author name or email to filter results.
@@ -197,29 +189,26 @@ def log(
         """
         raise NotImplementedError
 
-    def export(self, sha: str) -> str:
+    async def export(self, sha: str) -> str:
         """
         Show the changes (as a diff) in ``sha``.
         """
         raise NotImplementedError
 
-    def show(self, sha: str, filename: str) -> str:
+    async def show(self, sha: str, filename: str) -> str:
         """
         Show the contents of the ``filename`` at ``sha``.
         """
         raise NotImplementedError
 
+    async def get_known_branches(self) -> List[str]:
+        """ This is limited to parallel trees with names.
+        :return: A list of unique names for the branches.
+        """
+        raise NotImplementedError
+
     def get_default_branch(self) -> str:
         return self.get_default_revision()
 
     def get_default_revision(self) -> str:
         raise NotImplementedError
-
-    def is_child_parent(self, child_in_question: str, parent_in_question: str) -> bool:
-        raise NotImplementedError
-
-    def get_known_branches(self) -> List[str]:
-        """ This is limited to parallel trees with names.
-        :return: A list of unique names for the branches.
-        """
-        raise NotImplementedError
diff --git a/zeus/vcs/backends/git.py b/zeus/vcs/backends/git.py
index 1e7e8f29..3431acb8 100644
--- a/zeus/vcs/backends/git.py
+++ b/zeus/vcs/backends/git.py
@@ -1,4 +1,4 @@
-from typing import Iterator, List, Optional
+from typing import List, Optional
 from urllib.parse import urlparse
 
 from zeus.exceptions import CommandError, InvalidPublicKey, UnknownRevision
@@ -12,16 +12,6 @@
 ORIGIN_PREFIX = "remotes/origin/"
 
 
-class LazyGitRevisionResult(RevisionResult):
-    def __init__(self, vcs: Vcs, *args, **kwargs):
-        self.vcs = vcs
-        super(LazyGitRevisionResult, self).__init__(*args, **kwargs)
-
-    @memoize
-    def branches(self):
-        return self.vcs.branches_for_commit(self.sha)
-
-
 class GitVcs(Vcs):
     binary_path = "git"
 
@@ -53,10 +43,7 @@ def remote_url(self) -> str:
             url = self.url
         return url
 
-    def branches_for_commit(self, _id) -> list:
-        return self.get_known_branches(commit_id=_id)
-
-    def get_known_branches(self, commit_id=None) -> list:
+    async def get_known_branches(self, commit_id=None) -> list:
         """ List all branches or those related to the commit for this repo.
 
         Either gets all the branches (if the commit_id is not specified) or then
@@ -70,7 +57,7 @@ def get_known_branches(self, commit_id=None) -> list:
         command_parameters = ["branch", "-a"]
         if commit_id:
             command_parameters.extend(["--contains", commit_id])
-        output = self.run(command_parameters)
+        output = await self.run(command_parameters)
 
         for result in output.splitlines():
             # HACK(dcramer): is there a better way around removing the prefix?
@@ -83,14 +70,14 @@ def get_known_branches(self, commit_id=None) -> list:
             results.append(result)
         return list(set(results))
 
-    def run(self, cmd, **kwargs) -> str:
+    async def run(self, cmd, **kwargs) -> str:
         with sentry.Span("vcs.run-command", description=self.remote_url) as span:
             span.set_data("command", " ".join(cmd))
             span.set_data("backend", "git")
 
             cmd = [self.binary_path] + cmd
             try:
-                output = super(GitVcs, self).run(cmd, **kwargs)
+                output = await super().run(cmd, **kwargs)
                 span.set_data("output_bytes", len(output))
                 return output
 
@@ -124,22 +111,22 @@ def run(self, cmd, **kwargs) -> str:
 
                 raise
 
-    def clone(self):
+    async def clone(self):
         with sentry.Span("vcs.clone", description=self.remote_url) as par_span:
             par_span.set_tag("backend", "git")
-            self.run(["clone", "--mirror", self.remote_url, self.path])
+            await self.run(["clone", "--mirror", self.remote_url, self.path])
 
-    def update(self, allow_cleanup=False):
+    async def update(self, allow_cleanup=False):
         with sentry.Span("vcs.update", description=self.remote_url) as par_span:
             par_span.set_tag("backend", "git")
             par_span.set_tag("allow_cleanup", allow_cleanup)
 
             if allow_cleanup:
-                self.run(["fetch", "--all", "--force", "-p"])
+                await self.run(["fetch", "--all", "--force", "-p"])
             else:
-                self.run(["fetch", "--all", "--force"])
+                await self.run(["fetch", "--all", "--force"])
 
-    def log(
+    async def log(
         self,
         parent=None,
         branch=None,
@@ -148,7 +135,7 @@ def log(
         limit=100,
         timeout=None,
         update_if_exists=False,
-    ) -> Iterator[LazyGitRevisionResult]:
+    ) -> List[RevisionResult]:
         """ Gets the commit log for the repository.
 
         Each revision returned includes all the branches with which this commit
@@ -187,8 +174,8 @@ def log(
             par_span.set_tag("backend", "git")
             for n in range(2):
                 try:
-                    self.ensure(update_if_exists=update_if_exists)
-                    result = self.run(cmd, timeout=timeout)
+                    await self.ensure(update_if_exists=update_if_exists)
+                    result = await self.run(cmd, timeout=timeout)
                     break
                 except CommandError as cmd_error:
                     err_msg = cmd_error.stderr
@@ -199,10 +186,10 @@ def log(
                                 branch
                             )
                         )
-                        if not self.run(["remote"]):
+                        if not await self.run(["remote"]):
                             # assume we're in a broken state, and try to repair
                             # XXX: theory is this might happen when OOMKiller axes clone?
-                            result = self.run(
+                            result = await self.run(
                                 [
                                     "symbolic-ref",
                                     "refs/remotes/origin/HEAD",
@@ -221,6 +208,9 @@ def log(
                         raise default_error from cmd_error
                     raise
 
+        # we use a list instead of a generator as we were always
+        # needing to coerce to a list anyways
+        results = []
         for chunk in BufferParser(result, "\x02"):
             (
                 sha,
@@ -240,42 +230,34 @@ def log(
             author_date = timezone.fromtimestamp(float(author_date))
             committer_date = timezone.fromtimestamp(float(committer_date))
 
-            yield LazyGitRevisionResult(
-                vcs=self,
-                sha=sha,
-                author=author,
-                committer=committer,
-                author_date=author_date,
-                committer_date=committer_date,
-                parents=parents,
-                message=message,
+            results.append(
+                RevisionResult(
+                    sha=sha,
+                    author=author,
+                    committer=committer,
+                    author_date=author_date,
+                    committer_date=committer_date,
+                    parents=parents,
+                    message=message,
+                )
             )
+        return results
 
-    def export(self, sha, update_if_exists=False) -> str:
+    async def export(self, sha, update_if_exists=False) -> str:
         cmd = ["diff", "%s^..%s" % (sha, sha)]
         with sentry.Span("vcs.export", self.remote_url) as par_span:
             par_span.set_tag("sha", sha)
             par_span.set_tag("backend", "git")
-            self.ensure(update_if_exists=update_if_exists)
-            result = self.run(cmd)
+            await self.ensure(update_if_exists=update_if_exists)
+            result = await self.run(cmd)
         return result
 
-    def show(self, sha, filename, update_if_exists=False) -> str:
+    async def show(self, sha, filename, update_if_exists=False) -> str:
         cmd = ["show", "{}:{}".format(sha, filename)]
         with sentry.Span("vcs.show", self.remote_url) as par_span:
             par_span.set_tag("sha", sha)
             par_span.set_tag("filename", filename)
             par_span.set_tag("backend", "git")
-            self.ensure(update_if_exists=update_if_exists)
-            result = self.run(cmd)
+            await self.ensure(update_if_exists=update_if_exists)
+            result = await self.run(cmd)
         return result
-
-    def is_child_parent(self, child_in_question, parent_in_question) -> bool:
-        cmd = ["merge-base", "--is-ancestor", parent_in_question, child_in_question]
-        self.ensure()
-        try:
-            self.run(cmd)
-            return True
-
-        except CommandError:
-            return False
diff --git a/zeus/vcs/utils.py b/zeus/vcs/utils.py
index 07420c0b..a449b2b9 100644
--- a/zeus/vcs/utils.py
+++ b/zeus/vcs/utils.py
@@ -42,8 +42,8 @@ async def save_revision(conn, repo_id: UUID, revision: RevisionResult):
     async with conn.transaction():
         await conn.execute(
             """
-            INSERT INTO revision (repository_id, sha, committer_id, message, parents, branches, date_created, date_committed)
-            VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
+            INSERT INTO revision (repository_id, sha, committer_id, message, parents, date_created, date_committed)
+            VALUES ($1, $2, $3, $4, $5, $6, $7)
             ON CONFLICT DO NOTHING
         """,
             repo_id,
@@ -51,7 +51,6 @@ async def save_revision(conn, repo_id: UUID, revision: RevisionResult):
             await get_author_id(conn, repo_id, *revision.get_committer()),
             revision.message,
             revision.parents,
-            revision.branches,
             revision.author_date,
             revision.committer_date,
         )