diff --git a/code/create_app.py b/code/create_app.py
index 512d29bf5..a0d6c691e 100644
--- a/code/create_app.py
+++ b/code/create_app.py
@@ -742,15 +742,32 @@ def speech_config():
         """Get the speech config for Azure Speech."""
         try:
             logger.info("Method speech_config started")
-            speech_key = env_helper.AZURE_SPEECH_KEY or get_speech_key(env_helper)
 
-            response = requests.post(
-                f"{env_helper.AZURE_SPEECH_REGION_ENDPOINT}sts/v1.0/issueToken",
-                headers={
-                    "Ocp-Apim-Subscription-Key": speech_key,
-                },
-                timeout=5,
-            )
+            if env_helper.AZURE_AUTH_TYPE == "rbac":
+                credential = get_azure_credential(
+                    env_helper.MANAGED_IDENTITY_CLIENT_ID
+                )
+                token = credential.get_token(
+                    "https://cognitiveservices.azure.com/.default"
+                )
+                response = requests.post(
+                    f"{env_helper.AZURE_SPEECH_REGION_ENDPOINT}sts/v1.0/issueToken",
+                    headers={
+                        "Authorization": f"Bearer {token.token}",
+                    },
+                    timeout=5,
+                )
+            else:
+                speech_key = env_helper.AZURE_SPEECH_KEY or get_speech_key(
+                    env_helper
+                )
+                response = requests.post(
+                    f"{env_helper.AZURE_SPEECH_REGION_ENDPOINT}sts/v1.0/issueToken",
+                    headers={
+                        "Ocp-Apim-Subscription-Key": speech_key,
+                    },
+                    timeout=5,
+                )
 
             if response.status_code == 200:
                 return {
diff --git a/code/tests/test_create_app.py b/code/tests/test_create_app.py
index 397dae4b5..98a037fdd 100644
--- a/code/tests/test_create_app.py
+++ b/code/tests/test_create_app.py
@@ -92,6 +92,7 @@ def env_helper_mock():
             AZURE_SEARCH_SEMANTIC_SEARCH_CONFIG
         )
         env_helper.SHOULD_STREAM = True
+        env_helper.AZURE_AUTH_TYPE = "keys"
         env_helper.is_auth_type_keys.return_value = True
         env_helper.CONVERSATION_FLOW = ConversationFlow.CUSTOM.value
 
@@ -128,25 +129,24 @@ def test_returns_speech_token_using_keys(
             timeout=5,
         )
 
-    @patch("create_app.CognitiveServicesManagementClient")
+    @patch("create_app.get_azure_credential")
     @patch("create_app.requests")
     def test_returns_speech_token_using_rbac(
         self,
         requests: MagicMock,
-        CognitiveServicesManagementClientMock: MagicMock,
+        get_azure_credential_mock: MagicMock,
         env_helper_mock: MagicMock,
         client: FlaskClient,
     ):
         """Test that the speech token is returned correctly when using RBAC."""
         # given
+        env_helper_mock.AZURE_AUTH_TYPE = "rbac"
         env_helper_mock.AZURE_SPEECH_KEY = None
+        env_helper_mock.MANAGED_IDENTITY_CLIENT_ID = "mock-client-id"
 
-        mock_cognitive_services_client_mock = (
-            CognitiveServicesManagementClientMock.return_value
-        )
-        mock_cognitive_services_client_mock.accounts.list_keys.return_value = MagicMock(
-            key1="mock-key1", key2="mock-key2"
-        )
+        mock_credential = MagicMock()
+        mock_credential.get_token.return_value = MagicMock(token="mock-aad-token")
+        get_azure_credential_mock.return_value = mock_credential
 
         mock_response: MagicMock = requests.post.return_value
         mock_response.text = "speech-token"
@@ -163,10 +163,14 @@ def test_returns_speech_token_using_rbac(
             "languages": AZURE_SPEECH_RECOGNIZER_LANGUAGES,
         }
 
+        get_azure_credential_mock.assert_called_once_with("mock-client-id")
+        mock_credential.get_token.assert_called_once_with(
+            "https://cognitiveservices.azure.com/.default"
+        )
         requests.post.assert_called_once_with(
             f"{AZURE_SPEECH_REGION_ENDPOINT}sts/v1.0/issueToken",
             headers={
-                "Ocp-Apim-Subscription-Key": "mock-key1",
+                "Authorization": "Bearer mock-aad-token",
             },
             timeout=5,
         )