diff --git a/src/promptflow-evals/promptflow/evals/_http_utils.py b/src/promptflow-evals/promptflow/evals/_http_utils.py
index 0c128ab0d41..b02eb8507e2 100644
--- a/src/promptflow-evals/promptflow/evals/_http_utils.py
+++ b/src/promptflow-evals/promptflow/evals/_http_utils.py
@@ -21,8 +21,8 @@
     UserAgentPolicy,
 )
 from azure.core.pipeline.transport import (  # pylint: disable=non-abstract-transport-import,no-name-in-module
-    AioHttpTransport,
     AsyncHttpTransport,
+    AsyncioRequestsTransport,
     HttpTransport,
     RequestsTransport,
 )
@@ -294,7 +294,7 @@ def __init__(
             # AioHttpTransport normally should not be imported outside of azure.core, since transports
             # are meant to be user configurable.
             # AioHttpTransport is only used in this file as the default transport when not user specified.
-            transport=transport or AioHttpTransport(**kwargs),
+            transport=transport or AsyncioRequestsTransport(**kwargs),
             policies=[
                 config.headers_policy,
                 config.user_agent_policy,