diff --git a/poetry.lock b/poetry.lock
index cda12dd9..c9e13234 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -646,7 +646,7 @@ testing = ["coverage", "hypothesis (>=5.7.1)"]
 
 [[package]]
 name = "pytest-cov"
-version = "2.11.1"
+version = "2.12.1"
 description = "Pytest plugin for measuring coverage."
 category = "dev"
 optional = false
@@ -655,9 +655,10 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 [package.dependencies]
 coverage = ">=5.2.1"
 pytest = ">=4.6"
+toml = "*"
 
 [package.extras]
-testing = ["fields", "hunter", "process-tests (==2.0.2)", "six", "pytest-xdist", "virtualenv"]
+testing = ["fields", "hunter", "process-tests", "six", "pytest-xdist", "virtualenv"]
 
 [[package]]
 name = "pyupgrade"
@@ -858,7 +859,7 @@ multidict = ">=4.0"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "6f915491e494a543a957d8cc0b5ed4038a3d0096ded733e8c8e55e705131e71d"
+content-hash = "8cf8f7273bc62963d0b4ad658f1ff5582f8c61e095b6000499784e0252e777d5"
 
 [metadata.files]
 aiohttp = [
@@ -1255,8 +1256,8 @@ pytest-asyncio = [
     {file = "pytest_asyncio-0.15.1-py3-none-any.whl", hash = "sha256:3042bcdf1c5d978f6b74d96a151c4cfb9dcece65006198389ccd7e6c60eb1eea"},
 ]
 pytest-cov = [
-    {file = "pytest-cov-2.11.1.tar.gz", hash = "sha256:359952d9d39b9f822d9d29324483e7ba04a3a17dd7d05aa6beb7ea01e359e5f7"},
-    {file = "pytest_cov-2.11.1-py2.py3-none-any.whl", hash = "sha256:bdb9fdb0b85a7cc825269a4c56b48ccaa5c7e365054b6038772c32ddcdc969da"},
+    {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"},
 ]
 pyupgrade = [
     {file = "pyupgrade-2.14.0-py2.py3-none-any.whl", hash = "sha256:19bd23babd4c09171be66d393d83a53e5ae8d54c6534001c4b7ad92c4d560d69"},
diff --git a/pyproject.toml b/pyproject.toml
index 4155622e..e1dd5cd2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ pre-commit-hooks = "^3.4.0"
 pylint = "^2.8.3"
 pytest = "^6.2.4"
 pytest-asyncio = "^0.15.1"
-pytest-cov = "^2.11.1"
+pytest-cov = "^2.12.1"
 yamllint = "^1.26.1"
 pyupgrade = "^2.14.0"
 flake8-simplify = "^0.14.1"