diff --git a/libraries/functional-tests/functionaltestbot/requirements.txt b/libraries/functional-tests/functionaltestbot/requirements.txt
index b099b1ffd..313eb980c 100644
--- a/libraries/functional-tests/functionaltestbot/requirements.txt
+++ b/libraries/functional-tests/functionaltestbot/requirements.txt
@@ -1,5 +1,5 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
-botbuilder-core>=4.10
+botbuilder-core>=4.9.0
 flask==1.1.1
diff --git a/libraries/functional-tests/functionaltestbot/setup.py b/libraries/functional-tests/functionaltestbot/setup.py
index 8ad9c44c9..85d198662 100644
--- a/libraries/functional-tests/functionaltestbot/setup.py
+++ b/libraries/functional-tests/functionaltestbot/setup.py
@@ -5,7 +5,7 @@
 from setuptools import setup
 
 REQUIRES = [
-    "botbuilder-core>=4.10",
+    "botbuilder-core>=4.9.0",
     "flask==1.1.1",
 ]