diff --git a/requirements.txt b/requirements.txt
index bb945faa..45842f14 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Jinja2==2.7.3
 Markdown==2.6.2
 MarkupSafe==0.23
 Pillow==6.2.0
-Werkzeug==0.10.4
+Werkzeug==0.15.3
 Whoosh==2.7.0
 beautifulsoup4==4.3.2
 bleach==1.4.1