diff --git a/b2note_api/requirements.txt b/b2note_api/requirements.txt
index 9cb6bdc..933fb57 100644
--- a/b2note_api/requirements.txt
+++ b/b2note_api/requirements.txt
@@ -2,6 +2,6 @@ Authlib==0.11
 Eve==0.9.1
 Eve-Swagger==0.0.11
 loginpass==0.3
-mod-wsgi==4.6.7
+mod-wsgi==4.9.3
 requests==2.22.0
 simplejson==3.16.0