diff --git a/cm/requirements.txt b/cm/requirements.txt
index 0991c18..ed9583b 100644
--- a/cm/requirements.txt
+++ b/cm/requirements.txt
@@ -5,7 +5,7 @@ Jinja2==2.10
 MarkupSafe==0.23
 Pygments==1.6
 SQLAlchemy==1.1.10
-Werkzeug==0.14
+Werkzeug==0.15.3
 coverage==3.7.1
 httpie==0.8.0
 itsdangerous==0.24