diff --git a/azure_functions_worker/version.py b/azure_functions_worker/version.py
index d6d2d263..4974df56 100644
--- a/azure_functions_worker/version.py
+++ b/azure_functions_worker/version.py
@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
-VERSION = '4.26.0'
+VERSION = '4.28.1'