diff --git a/runtimes/v2/azure_functions_runtime/version.py b/runtimes/v2/azure_functions_runtime/version.py
index d5c10405..992084ef 100644
--- a/runtimes/v2/azure_functions_runtime/version.py
+++ b/runtimes/v2/azure_functions_runtime/version.py
@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
-VERSION = '1.1.1'
+VERSION = '1.2.1'
diff --git a/workers/pyproject.toml b/workers/pyproject.toml
index b1a4b2a9..d02e052c 100644
--- a/workers/pyproject.toml
+++ b/workers/pyproject.toml
@@ -38,7 +38,7 @@ dependencies = [
      "uvloop~=0.21.0; python_version == '3.13' and sys_platform != 'win32'",
      "uvloop~=0.22.0; python_version == '3.14' and sys_platform != 'win32'",
      "azurefunctions-extensions-base==1.3.0b1",
-     "azure-functions-runtime==1.1.1; python_version >= '3.13'",
+     "azure-functions-runtime==1.2.1; python_version >= '3.13'",
      "azure-functions-runtime-v1==1.1.0; python_version >= '3.13'"
 ]