diff --git a/requirements.txt b/requirements.txt
index 3d0357b..447a3bf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ ConfigArgParse==0.13.0
 networkx==2.2
 pykwalify==1.7.0
 coloredlogs==10.0
-flask==1.0.2
+flask==2.3.2
 flask_cors==3.0.7
 scikit-learn==0.20.2
 rasa_nlu~=0.14.6