diff --git a/poetry.lock b/poetry.lock
index 7b29edf..1ac10ec 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -597,7 +597,7 @@ testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.
 
 [[package]]
 name = "pytest-cov"
-version = "3.0.0"
+version = "4.0.0"
 description = "Pytest plugin for measuring coverage."
 category = "dev"
 optional = false
@@ -886,7 +886,7 @@ testing = ["func-timeout", "jaraco.itertools", "pytest (>=6)", "pytest-black (>=
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "db2d6779b5aab866eeb5fe50bf4e444b2481b6e4f6a32fa75de2b533c9e38fa6"
+content-hash = "4d18cd2180af9939b0cc67b0ec6d325a34f529c88597e1734afba36db2faedb0"
 
 [metadata.files]
 anyconfig = [
@@ -1163,8 +1163,8 @@ pytest = [
     {file = "pytest-7.1.3.tar.gz", hash = "sha256:4f365fec2dff9c1162f834d9f18af1ba13062db0c708bf7b946f8a5c76180c39"},
 ]
 pytest-cov = [
-    {file = "pytest-cov-3.0.0.tar.gz", hash = "sha256:e7f0f5b1617d2210a2cabc266dfe2f4c75a8d32fb89eafb7ad9d06f6d076d470"},
-    {file = "pytest_cov-3.0.0-py3-none-any.whl", hash = "sha256:578d5d15ac4a25e5f961c938b85a05b09fdaae9deef3bb6de9a6e766622ca7a6"},
+    {file = "pytest-cov-4.0.0.tar.gz", hash = "sha256:996b79efde6433cdbd0088872dbc5fb3ed7fe1578b68cdbba634f14bb8dd0470"},
+    {file = "pytest_cov-4.0.0-py3-none-any.whl", hash = "sha256:2feb1b751d66a8bd934e5edfa2e961d11309dc37b73b0eabe73b5945fee20f6b"},
 ]
 pytest-mock = [
     {file = "pytest-mock-3.8.2.tar.gz", hash = "sha256:77f03f4554392558700295e05aed0b1096a20d4a60a4f3ddcde58b0c31c8fca2"},
diff --git a/pyproject.toml b/pyproject.toml
index 1f4f1c7..7700bc2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ flake8-quotes = "3.3.1"
 pep8-naming = "0.13.2"
 pydocstyle = "6.1.1"
 pytest = "7.1.3"
-pytest-cov = "3.0.0"
+pytest-cov = "4.0.0"
 pytest-mock = "3.8.2"
 tomli = "2.0.1"
 yapf = "0.32.0"