diff --git a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs
index a8c7ac27d93..fc9d1799008 100644
--- a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs
+++ b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs
@@ -521,7 +521,7 @@ public async Task WriteBodyBytes(byte[] bodyData, int playbackResponseTime, Http
 
                     if (i != chunks.Length - 1)
                     {
-                        Thread.Sleep(sleepLength);
+                        await Task.Delay(sleepLength);
                     }
                 }