diff --git a/requirements.txt b/requirements.txt
index f6f5354ff2..09707355b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Werkzeug==0.11.11
 Jinja2==2.8
 itsdangerous==0.24
 click==6.6
-MarkupSafe==0.23
+MarkupSafe==1.1.1
 pyOpenSSL==16.2.0
 httplib2==0.10.3
 Flask-Admin==1.5.2