diff --git a/requirements.txt b/requirements.txt
index 877eeca..c532f61 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ jieba==0.39
 kombu==3.0.37
 markdown2==2.3.5
 maxminddb==1.3.0
-mistune==0.8.3
+mistune==2.0.3
 mistune-contrib==0.1
 oauthlib==2.0.7
 olefile==0.45.1