diff --git a/poetry.lock b/poetry.lock
index 2cb78c3..76b9b83 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1233,17 +1233,17 @@ dev = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "pygments
 
 [[package]]
 name = "pytest-cov"
-version = "5.0.0"
+version = "6.0.0"
 description = "Pytest plugin for measuring coverage."
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.9"
 files = [
-    {file = "pytest-cov-5.0.0.tar.gz", hash = "sha256:5837b58e9f6ebd335b0f8060eecce69b662415b16dc503883a02f45dfeb14857"},
-    {file = "pytest_cov-5.0.0-py3-none-any.whl", hash = "sha256:4f0764a1219df53214206bf1feea4633c3b558a2925c8b59f144f682861ce652"},
+    {file = "pytest-cov-6.0.0.tar.gz", hash = "sha256:fde0b595ca248bb8e2d76f020b465f3b107c9632e6a1d1705f17834c89dcadc0"},
+    {file = "pytest_cov-6.0.0-py3-none-any.whl", hash = "sha256:eee6f1b9e61008bd34975a4d5bab25801eb31898b032dd55addc93e96fcaaa35"},
 ]
 
 [package.dependencies]
-coverage = {version = ">=5.2.1", extras = ["toml"]}
+coverage = {version = ">=7.5", extras = ["toml"]}
 pytest = ">=4.6"
 
 [package.extras]
@@ -1699,4 +1699,4 @@ polars = ["polars"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "c7955d064ed6ecd89e1cdb211d3f5208af92db0283c5ed20baf85c1e84a4a2c1"
+content-hash = "7d4bbe44a40a23a4aab3e1c3ab363b0559724702b845f89a8b6ebb48a63b206f"
diff --git a/pyproject.toml b/pyproject.toml
index b215cc0..229cd79 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ polars = ["polars"]
 
 [tool.poetry.group.dev.dependencies]
 pytest = ">=7.2,<9.0"
-pytest-cov = ">=3,<6"
+pytest-cov = ">=3,<7"
 pytest-mypy = "^0.9.1"
 pytest-mock = "^3.7.0"
 pre-commit = ">=2.18.1,<5.0.0"