diff --git a/pyproject.toml b/pyproject.toml
index 3ef9b5b..35b08a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ dynamic = ["version"]
 [project.optional-dependencies]
 dev = [
     "pytest~=8.0",
-    "pytest-cov~=4.1",
+    "pytest-cov>=4.1,<8.0",
     "flake8~=7.0",
 ]