diff --git a/Runtime/safe-ds/poetry.lock b/Runtime/safe-ds/poetry.lock
index 1b3a78a13..d26bdf300 100644
--- a/Runtime/safe-ds/poetry.lock
+++ b/Runtime/safe-ds/poetry.lock
@@ -106,7 +106,7 @@ 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
@@ -130,7 +130,7 @@ python-versions = ">=3.7"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.10"
-content-hash = "46f3720808a691331d1462a5477fb9f05f48d697843e5409fb872ce29f34995f"
+content-hash = "f9705074c295943de806674bf577986897fc74a2c611363c63467e4d082f25b4"
 
 [metadata.files]
 attrs = [
@@ -209,8 +209,8 @@ 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"},
 ]
 tomli = [
     {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
diff --git a/Runtime/safe-ds/pyproject.toml b/Runtime/safe-ds/pyproject.toml
index 29cbe178e..01ab58532 100644
--- a/Runtime/safe-ds/pyproject.toml
+++ b/Runtime/safe-ds/pyproject.toml
@@ -10,7 +10,7 @@ python = "^3.10"
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.1.3"
-pytest-cov = "^3.0.0"
+pytest-cov = "^4.0.0"
 
 [tool.mypy]
 ignore_missing_imports = true