diff --git a/requirements_dev.txt b/requirements_dev.txt
index 9ee8642..fe0865b 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -12,7 +12,7 @@ twine==3.1.1
 pytest==5.3.1
 pytest-runner==5.2
 pytest-mpl==0.10
-pytest-cov==2.8.1
+pytest-cov==2.11.1
 pytest-doctestplus==0.5.0
 codecov==2.0.15
 pre-commit==1.20.0