diff --git a/pyproject.toml b/pyproject.toml
index 0b73264..23950c4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ pymitter = ">=0.4,<0.6"
 [tool.poetry.dev-dependencies]
 pytest = "~8.1"
 pytest-asyncio = "~0.23"
-pytest-cov = "~4.1"
+pytest-cov = "~5.0"
 pytest-unordered = "~0.6"
 pre-commit = "~3.6"
 Sphinx = "~7.2"