diff --git a/tests/functional-tests/functionaltestbot/requirements.txt b/tests/functional-tests/functionaltestbot/requirements.txt
index ce98b3838..feed9e4db 100644
--- a/tests/functional-tests/functionaltestbot/requirements.txt
+++ b/tests/functional-tests/functionaltestbot/requirements.txt
@@ -2,4 +2,4 @@
 # Licensed under the MIT License.
 
 botbuilder-core>=4.9.0
-flask==2.2.5
+flask==3.1.3