diff --git a/requirements-dev.txt b/requirements-dev.txt
index e89e7d7..791d02c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,6 +2,6 @@
 
 coverage==4.5.3
 pytest==4.4.0
-pytest-cov==2.6.1
+pytest-cov==4.0.0
 responses==0.16.0
 coveralls==1.7.0