diff --git a/pyproject.toml b/pyproject.toml
index e48eeb321..7b332e52c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,7 +67,7 @@ dev = [
     "pdoc>=4.0.0",
     "pyinstaller==6.5.0",
     "pytest-asyncio>=0.23,<0.24",
-    "pytest-cov>=2.7.1,<4.2",
+    "pytest-cov>=2.7.1,<5.1",
     "pytest-timeout>=1.3.3,<2.4",
     "pytest-xdist>=2.1.0,<3.6",
     "pytest>=6.1.0,<9",