diff --git a/pyproject.toml b/pyproject.toml
index d8803c4..327adda 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ isort = ">=5.7,<7.0"
 lxml = "^5.2.2" 
 mypy = "^1.1"
 pytest = ">=7,<9" 
-pytest-cov = "^4.0.0" 
+pytest-cov = ">=4,<8" 
 tox = ">=3.23,<5.0"
 ruff = ">=0.12,<0.16"