diff --git a/requirements-dev.txt b/requirements-dev.txt
index ebc26af..c3b1ff4 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,5 +2,5 @@
 
 coveralls==1.8.2
 pytest==5.2.2
-pytest-cov==2.7.1
+pytest-cov==2.8.1
 pytest-mock==1.11.2