diff --git a/setup.cfg b/setup.cfg
index 78a3083..a43f586 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -58,7 +58,7 @@ tests =
     black
     flake8
 pep8 = flake8
-coverage = pytest-cov
+coverage = pytest-cov==4.1.0
 docs =
     sphinx
     sphinx-rtd-theme