diff --git a/requirements_dev.txt b/requirements_dev.txt
index e17c7b0..bb00a45 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ wheel==0.30.0
 watchdog==0.8.3
 flake8==3.5.0
 tox==2.9.1
-coverage==4.4.2
+coverage==4.5.3
 Sphinx==1.6.5
 PyYAML==3.12
 pytest==3.3.1