diff --git a/samples/cloudformation-cross-account/functions/source/CfnStackAssumeRole/lambda_function.py b/samples/cloudformation-cross-account/functions/source/CfnStackAssumeRole/lambda_function.py
index 42638d9..cfc81c3 100644
--- a/samples/cloudformation-cross-account/functions/source/CfnStackAssumeRole/lambda_function.py
+++ b/samples/cloudformation-cross-account/functions/source/CfnStackAssumeRole/lambda_function.py
@@ -3,7 +3,7 @@
 import string
 import logging
 import threading
-from botocore.vendored import requests
+import requests
 import json
 from botocore.credentials import (
     AssumeRoleCredentialFetcher,
diff --git a/samples/cloudformation-cross-account/functions/source/CfnStackAssumeRole/requirements.txt b/samples/cloudformation-cross-account/functions/source/CfnStackAssumeRole/requirements.txt
new file mode 100644
index 0000000..f229360
--- /dev/null
+++ b/samples/cloudformation-cross-account/functions/source/CfnStackAssumeRole/requirements.txt
@@ -0,0 +1 @@
+requests