diff --git a/requirements-dev.txt b/requirements-dev.txt
index 79316f1..aa647bb 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,7 +2,7 @@
 flake8==3.5.0
 async-timeout==3.0
 pytest==3.8.0
-pytest-cov==2.5.1
+pytest-cov==2.6.0
 pytest-mock==1.10.0
 coverage==4.5.1
 sphinx==1.7.8