diff --git a/flaskapp/requirements.txt b/flaskapp/requirements.txt
index 75b05f2..9cd0c53 100644
--- a/flaskapp/requirements.txt
+++ b/flaskapp/requirements.txt
@@ -19,7 +19,7 @@ scipy==1.1.0
 six==1.11.0
 sklearn==0.0
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 lxml==4.2.5
 langdetect==1.0.7
 beautifulsoup4==4.6.3