diff --git a/msgfplus_container/MsgfPyServer/requirements.txt b/msgfplus_container/MsgfPyServer/requirements.txt
index c5e530d..0faba35 100644
--- a/msgfplus_container/MsgfPyServer/requirements.txt
+++ b/msgfplus_container/MsgfPyServer/requirements.txt
@@ -1,3 +1,3 @@
-flask==1.0.2
+flask==3.1.3
 werkzeug
 celery[redis]
\ No newline at end of file