diff --git a/poetry.lock b/poetry.lock
index 8c7b4ecc..a6fc7920 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -240,17 +240,17 @@ development = ["black", "flake8", "mypy", "pytest", "types-colorama"]
 
 [[package]]
 name = "coverage"
-version = "5.5"
+version = "6.0"
 description = "Code coverage measurement for Python"
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
+python-versions = ">=3.6"
 
 [package.dependencies]
-toml = {version = "*", optional = true, markers = "extra == \"toml\""}
+tomli = {version = "*", optional = true, markers = "extra == \"toml\""}
 
 [package.extras]
-toml = ["toml"]
+toml = ["tomli"]
 
 [[package]]
 name = "cryptography"
@@ -1232,6 +1232,14 @@ category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
+[[package]]
+name = "tomli"
+version = "1.2.1"
+description = "A lil' TOML parser"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
 [[package]]
 name = "tomlkit"
 version = "0.7.2"
@@ -1398,7 +1406,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = ">=3.8.0,<3.10"
-content-hash = "a7fead71c592cf3af0de02e58056765a3369d046e0e31db7f0c225ef29873cc9"
+content-hash = "b16ef4c267979c55a757b94d7a35e308235df226b275060d318d0413ff6e98bd"
 
 [metadata.files]
 alabaster = [
@@ -1528,58 +1536,41 @@ colorlog = [
     {file = "colorlog-6.4.1.tar.gz", hash = "sha256:af99440154a01f27c09256760ea3477982bf782721feaa345904e806879df4d8"},
 ]
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 cryptography = [
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 ]
+tomli = [
+    {file = "tomli-1.2.1-py3-none-any.whl", hash = "sha256:8dd0e9524d6f386271a36b41dbf6c57d8e32fd96fd22b6584679dc569d20899f"},
+    {file = "tomli-1.2.1.tar.gz", hash = "sha256:a5b75cb6f3968abb47af1b40c1819dc519ea82bcc065776a866e8d74c5ca9442"},
+]
 tomlkit = [
     {file = "tomlkit-0.7.2-py2.py3-none-any.whl", hash = "sha256:173ad840fa5d2aac140528ca1933c29791b79a374a0861a80347f42ec9328117"},
     {file = "tomlkit-0.7.2.tar.gz", hash = "sha256:d7a454f319a7e9bd2e249f239168729327e4dd2d27b17dc68be264ad1ce36754"},
diff --git a/pyproject.toml b/pyproject.toml
index f65794c3..7979b0ed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ wheel = "0.36.2"
 watchdog = "2.1.5"
 flake8 = "3.9.2"
 tox = "3.24.4"
-coverage = "5.5"
+coverage = "6.0"
 twine = "3.4.2"
 pytest = "6.2.5"
 pytest-runner = "5.3.1"