diff --git a/tests/llm_responses_api_testing/test_azure_responses_api.py b/tests/llm_responses_api_testing/test_azure_responses_api.py
index 41b69ab5ed4..eeb7eb50151 100644
--- a/tests/llm_responses_api_testing/test_azure_responses_api.py
+++ b/tests/llm_responses_api_testing/test_azure_responses_api.py
@@ -27,7 +27,7 @@ class TestAzureResponsesAPITest(BaseResponsesAPITest):
             "truncation": "auto",
             "api_base": os.getenv("AZURE_API_BASE"),
             "api_key": os.getenv("AZURE_API_KEY"),
-            "api_version": os.getenv("AZURE_RESPONSES_OPENAI_API_VERSION"),
+            "api_version": "2025-03-01-preview",
         }