diff --git a/requirements.txt b/requirements.txt
index 6bcbe98..950e4d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,4 +25,4 @@ six==1.10.0
 snowballstemmer==1.2.1
 termcolor==1.1.0
 urllib3==1.20
-Werkzeug==0.12.1
+Werkzeug==0.15.3