diff --git a/pyproject.toml b/pyproject.toml
index 962308d..6b3f2cc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ sphinx_rtd_theme = ">=1.0,<2.1"
 coverage = {extras = ["toml"], version = ">=5.1,<8.0"}
 ipdb = ">=0.13.9"
 pytest = "^7.1.2"
-pytest-cov = ">=3,<5"
+pytest-cov = ">=3,<6"
 pytest-mock = "^3.7.0"
 pyright = "^1.1.273"
 pytest-pyright = ">=0.0.3,<0.0.7"