diff --git a/requirements.txt b/requirements.txt
index 402284f39..be534758e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ ws4py==0.5.1
 requests==2.20.0
 paho-mqtt==1.6.1
 email-validator==1.1.3
-flask==2.0.3
+flask==2.3.2
 flask_login==0.5.0
 flask_restful==0.3.9
 flask_wtf==1.0.0