diff --git a/example/mongodb/requirements.txt b/example/mongodb/requirements.txt
index 458a6a8..2e6dab2 100644
--- a/example/mongodb/requirements.txt
+++ b/example/mongodb/requirements.txt
@@ -12,7 +12,7 @@ Flask-OAuth==0.12
 Flask-Principal==0.4.0
 Flask-Script==2.0.5
 Flask-Security==1.7.5
-Flask-WTF==0.13.1
+Flask-WTF==0.14.1
 google-api-python-client==1.5.5
 httplib2==0.9.2
 itsdangerous==0.24