diff --git a/papers/ReTraCk/requirements.txt b/papers/ReTraCk/requirements.txt
index 50bed6e..cf08cdd 100644
--- a/papers/ReTraCk/requirements.txt
+++ b/papers/ReTraCk/requirements.txt
@@ -31,7 +31,7 @@ prettytable
 nltk==3.6.6
 
 # REST API
-Flask==1.1.1
+Flask==2.3.2
 Flask-Cors==3.0.9
 regex
 requests