diff --git a/sdncontroller/requirements.txt b/sdncontroller/requirements.txt
index 8f96856..b1be86f 100644
--- a/sdncontroller/requirements.txt
+++ b/sdncontroller/requirements.txt
@@ -1,6 +1,6 @@
 dataclasses==0.6
 env_file==2019.4.13
-Flask==1.1.2
+Flask==2.3.2
 Flask-Migrate==2.5.3
 Flask-SQLAlchemy==2.4.1
 pymongo==3.10.1