diff --git a/requirements.txt b/requirements.txt
index 50cf7f5..82db2a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Werkzeug==0.14.1
 Flask==0.12.4
-mongoengine==0.16.3
+mongoengine==0.28.1
 flask-mongoengine==0.9.5
 thriftpy==0.3.9
 redis==2.10.6