diff --git a/poetry.lock b/poetry.lock
index 33a00204a8..8e6806f984 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -785,16 +785,15 @@ testing = ["coverage", "hypothesis (>=5.7.1)"]
 
 [[package]]
 name = "pytest-cov"
-version = "2.12.1"
+version = "3.0.0"
 description = "Pytest plugin for measuring coverage."
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+python-versions = ">=3.6"
 
 [package.dependencies]
-coverage = ">=5.2.1"
+coverage = {version = ">=5.2.1", extras = ["toml"]}
 pytest = ">=4.6"
-toml = "*"
 
 [package.extras]
 testing = ["fields", "hunter", "process-tests", "six", "pytest-xdist", "virtualenv"]
@@ -1055,7 +1054,7 @@ pydantic = ["pydantic", "email-validator"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6.1"
-content-hash = "954bc39735889712f4db3b3ccda42ae39ed25e75cd459ddb6ae634b54bede0a1"
+content-hash = "a0358de807bcf4fe1af43ac28f40f41552d559b11cfc5ebd099a4e3842f87a8d"
 
 [metadata.files]
 appdirs = [
@@ -1440,8 +1439,8 @@ pytest-asyncio = [
     {file = "pytest_asyncio-0.15.1-py3-none-any.whl", hash = "sha256:3042bcdf1c5d978f6b74d96a151c4cfb9dcece65006198389ccd7e6c60eb1eea"},
 ]
 pytest-cov = [
-    {file = "pytest-cov-2.12.1.tar.gz", hash = "sha256:261ceeb8c227b726249b376b8526b600f38667ee314f910353fa318caa01f4d7"},
-    {file = "pytest_cov-2.12.1-py2.py3-none-any.whl", hash = "sha256:261bb9e47e65bd099c89c3edf92972865210c36813f80ede5277dceb77a4a62a"},
+    {file = "pytest-cov-3.0.0.tar.gz", hash = "sha256:e7f0f5b1617d2210a2cabc266dfe2f4c75a8d32fb89eafb7ad9d06f6d076d470"},
+    {file = "pytest_cov-3.0.0-py3-none-any.whl", hash = "sha256:578d5d15ac4a25e5f961c938b85a05b09fdaae9deef3bb6de9a6e766622ca7a6"},
 ]
 pytest-mock = [
     {file = "pytest-mock-3.6.1.tar.gz", hash = "sha256:40217a058c52a63f1042f0784f62009e976ba824c418cced42e88d5f40ab0e62"},
diff --git a/pyproject.toml b/pyproject.toml
index 8841b5c3dd..ca188d52f8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ flake8-fixme = "^1.1.1"
 flake8-isort = "^4.0.0"
 flake8-variables-names = "^0.0.4"
 isort = "^5.9.3"
-pytest-cov = "^2.12.1"
+pytest-cov = "^3.0.0"
 pytest-mock = "^3.5.1"
 pdoc3 = "^0.10.0"
 pytest-asyncio = "^0.15.1"