diff --git a/requirements.txt b/requirements.txt
index f83cc9a..4082bda 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,5 +15,5 @@ mpmath==0.19
 passlib==1.7.0
 SQLAlchemy==1.1.4
 sympy==1.0
-Werkzeug==0.15.3
+Werkzeug==0.15.5
 WTForms==2.1