diff --git a/visualbert/allennlp-requirements.txt b/visualbert/allennlp-requirements.txt
index 351fbbc..a23b75b 100644
--- a/visualbert/allennlp-requirements.txt
+++ b/visualbert/allennlp-requirements.txt
@@ -47,7 +47,7 @@ awscli>=1.11.91
 boto3
 
 # REST interface for models
-flask==1.0.2
+flask==2.3.2
 flask-cors==3.0.9
 gevent==1.3.6