diff --git a/litellm/llms/azure/azure.py b/litellm/llms/azure/azure.py
index 3a30444f06d..c23a4dd04fa 100644
--- a/litellm/llms/azure/azure.py
+++ b/litellm/llms/azure/azure.py
@@ -2,6 +2,7 @@ import asyncio
 import json
 import time
 from collections.abc import Callable, Coroutine
+from types import MappingProxyType
 from typing import Any, Final
 
 import httpx
@@ -1116,7 +1117,7 @@ class AzureChatCompletion(BaseAzureLLM, BaseLLM):
         if BaseAzureLLM._is_azure_v1_api_version(api_version):
             return BaseAzureLLM._get_base_azure_url(
                 api_base=api_base,
-                litellm_params={"api_version": api_version},
+                litellm_params=MappingProxyType({"api_version": api_version}),
                 route="/openai/images/generations",
             )
 
diff --git a/litellm/llms/azure/image_edit/transformation.py b/litellm/llms/azure/image_edit/transformation.py
index eb1a51ca3e8..274bb49f400 100644
--- a/litellm/llms/azure/image_edit/transformation.py
+++ b/litellm/llms/azure/image_edit/transformation.py
@@ -1,3 +1,4 @@
+from types import MappingProxyType
 from typing import Final, cast
 
 import httpx
@@ -106,7 +107,7 @@ class AzureImageEditConfig(OpenAIImageEditConfig):
         if BaseAzureLLM._is_azure_v1_api_version(api_version):
             return BaseAzureLLM._get_base_azure_url(
                 api_base=api_base,
-                litellm_params={"api_version": api_version},
+                litellm_params=MappingProxyType({"api_version": api_version}),
                 route="/openai/images/edits",
             )