diff --git a/requirements_dev.txt b/requirements_dev.txt
index f03b5e9..98a5125 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -3,7 +3,7 @@ wheel==0.31.0
 watchdog==0.8.3
 flake8==3.5.0
 tox==2.9.1
-coverage==4.5.1
+coverage==4.5.4
 Sphinx==1.7.2
 PyYAML==3.12
 pytest==3.5.0