diff --git a/requirements.txt b/requirements.txt
index bdabc005..4abcf193 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,5 +37,5 @@ SQLObject==3.4.0
 sqlparse==0.2.3
 Tempita==0.5.2
 termcolor==1.1.0
-Werkzeug==0.11.8
+Werkzeug==0.15.5
 wikipedia==1.4.0