diff --git a/requirements.txt b/requirements.txt
index cc81607..cb5d3b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-flask==1.1.1
+flask==2.3.2
 wechatpy==1.8.4
 
 pytorch==1.1.0