diff --git a/pyproject.toml b/pyproject.toml
index e7fe700..372e452 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ Documentation = "https://m0nsterrr.github.io/awtrix-light-client/latest/"
 [project.optional-dependencies]
 dev = [
     "pytest~=8.3.3",
-    "pytest-cov~=5.0.0",
+    "pytest-cov>=5.0,<6.1",
     "pytest-asyncio~=0.24.0",
     "pytest-httpx~=0.32.0",
     "ruff~=0.7.0",