diff --git a/etc/requirements_dev.txt b/etc/requirements_dev.txt
index 1c05d119..178b7be6 100644
--- a/etc/requirements_dev.txt
+++ b/etc/requirements_dev.txt
@@ -17,7 +17,7 @@ sphinx-rtd-theme==0.1.8
 sphinx==1.3.1
 pbr==1.3.0
 
-mock==1.2.0
+mock==1.3.0
 
 # Linting