diff --git a/requirements.txt b/requirements.txt
index 3eb356b5..eb100316 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ pyflakes==1.5.0
 Pygments==2.7.4
 pyparsing==2.2.0
 pytest==3.0.7
-pytest-cov==2.4.0
+pytest-cov==4.0.0
 scandir==1.5
 simplegeneric==0.8.1
 six==1.10.0