diff --git a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs
index 6feabe8a455..48dd483ec50 100644
--- a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs
+++ b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/RecordingHandler.cs
@@ -356,6 +356,7 @@ public async Task HandlePlaybackRequest(string recordingId, HttpRequest incoming
                 var bodyData = CompressBody(match.Response.Body, match.Response.Headers);
 
                 outgoingResponse.ContentLength = bodyData.Length;
+
                 await outgoingResponse.Body.WriteAsync(bodyData).ConfigureAwait(false);
             }
         }
diff --git a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Sanitizers/BodyRegexSanitizer.cs b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Sanitizers/BodyRegexSanitizer.cs
index afb15cab076..5c07a20ad01 100644
--- a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Sanitizers/BodyRegexSanitizer.cs
+++ b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Sanitizers/BodyRegexSanitizer.cs
@@ -1,5 +1,6 @@
 using Azure.Sdk.Tools.TestProxy.Common;
 using System;
+using System.Text;
 
 namespace Azure.Sdk.Tools.TestProxy.Sanitizers
 {
@@ -35,7 +36,7 @@ public override string SanitizeTextBody(string contentType, string body)
 
         public override byte[] SanitizeBody(string contentType, byte[] body)
         {
-            return body;
+            return Encoding.UTF8.GetBytes(StringSanitizer.SanitizeValue(Encoding.UTF8.GetString(body), _newValue, _regexValue, _groupForReplace));
         }
     }
 }