diff --git a/requirements.txt b/requirements.txt
index 270de6a913a..6e960539a5e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ networkx==2.1
 fbmessenger==5.2.0
 pykwalify<=1.6.0
 coloredlogs==10.0
-flask==1.0.2
+flask==3.1.3
 flask_cors==3.0.4
 scikit-learn==0.19.2
 rasa_nlu~=0.13.0
diff --git a/setup.py b/setup.py
index a110c50ad27..407b44e5e3f 100644
--- a/setup.py
+++ b/setup.py
@@ -45,7 +45,7 @@
     "pykwalify<=1.6.0",
     "coloredlogs~=10.0",
     "ruamel.yaml~=0.15.0",
-    "flask~=1.0",
+    "flask~=3.1",
     "flask_cors~=3.0",
     "scikit-learn~=0.19.0",
     "slackclient~=1.0",