diff --git a/session4/requirements.txt b/session4/requirements.txt
index ff11330..c7097f6 100644
--- a/session4/requirements.txt
+++ b/session4/requirements.txt
@@ -1,5 +1,5 @@
 connexion==2.7.0
-Flask==1.1.2
+Flask==2.3.2
 requests==2.23.0
 swagger-ui-bundle==0.0.6
 urllib3==1.25.9