diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5d4f357..32d599e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
 -r requirements.txt
 flake8==3.5.0
 pytest==3.7.4
-pytest-cov==2.5.1
+pytest-cov==2.6.0