diff --git a/requirements_dev.txt b/requirements_dev.txt
index 0f31a07..2adbd5e 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -7,7 +7,7 @@ matplotlib==3.3.4
 pip==21.1.3
 pluggy==0.13.1
 pytest==6.2.4
-pytest-cov==2.12.1
+pytest-cov==6.0.0
 pytest-runner==5.3.1
 pytest-vcr==1.0.2
 Sphinx==4.1.0