diff --git a/open_dubbing/dubbing.py b/open_dubbing/dubbing.py
index d0923e1..a744b3c 100644
--- a/open_dubbing/dubbing.py
+++ b/open_dubbing/dubbing.py
@@ -386,17 +386,6 @@ def update(self):
         # Update voices in case they have changed
         modified_utterances = utterance.get_modified_utterances(self.utterance_metadata)
 
-        assigned_voices = self.tts.assign_voices(
-            utterance_metadata=modified_utterances,
-            target_language=self.target_language,
-            target_language_region=self.target_language_region,
-        )
-
-        modified_utterances = self.tts.update_utterance_metadata(
-            utterance_metadata=modified_utterances,
-            assigned_voices=assigned_voices,
-        )
-
         self.tts.dub_utterances(
             utterance_metadata=modified_utterances,
             output_directory=self.output_directory,
diff --git a/open_dubbing/text_to_speech.py b/open_dubbing/text_to_speech.py
index 91e2659..b72be43 100644
--- a/open_dubbing/text_to_speech.py
+++ b/open_dubbing/text_to_speech.py
@@ -103,24 +103,6 @@ def _add_text_to_speech_properties(
         utterance_metadata_copy.update(voice_properties)
         return utterance_metadata_copy
 
-    def update_utterance_metadata(
-        self,
-        *,
-        utterance_metadata: Sequence[Mapping[str, str | float]],
-        assigned_voices: Mapping[str, str] | None,
-    ) -> Sequence[Mapping[str, str | float]]:
-        """Updates utterance metadata with assigned voices."""
-        updated_utterance_metadata = []
-        for metadata_item in utterance_metadata:
-            new_utterance = metadata_item.copy()
-            speaker_id = new_utterance.get("speaker_id")
-            new_utterance["assigned_voice"] = assigned_voices.get(speaker_id)
-            new_utterance = self._add_text_to_speech_properties(
-                utterance_metadata=new_utterance
-            )
-            updated_utterance_metadata.append(new_utterance)
-        return updated_utterance_metadata
-
     @abstractmethod
     def get_languages(self):
         pass
diff --git a/open_dubbing/utterance.py b/open_dubbing/utterance.py
index e53a4c6..a4d29af 100644
--- a/open_dubbing/utterance.py
+++ b/open_dubbing/utterance.py
@@ -187,7 +187,6 @@ def update_utterances(self, utterance_master, utterance_update):
                 "speed",
                 "assigned_voice",
                 "for_dubbing",
-                "gender",
                 "start",
                 "end",
             ]
diff --git a/tests/utterance_test.py b/tests/utterance_test.py
index 3e758ab..1629b2a 100644
--- a/tests/utterance_test.py
+++ b/tests/utterance_test.py
@@ -221,7 +221,7 @@ def test_update_utterances_operation_update(self):
             {
                 "id": 2,
                 "operation": "update",
-                "gender": "Female",
+                "assigned_voice": "ca-ES-EnricNeural2",
                 "translated_text": "Sóc de Tarragona",
             }
         ]
@@ -236,9 +236,9 @@ def test_update_utterances_operation_update(self):
             "path": "output/jordi.central.edge.update/chunk_5.24534375_6.629093750000001.mp3",
             "text": "I am from Barcelona.",
             "for_dubbing": True,
-            "gender": "Female",
+            "gender": "Male",
             "translated_text": "Sóc de Tarragona",
-            "assigned_voice": "ca-ES-EnricNeural",
+            "assigned_voice": "ca-ES-EnricNeural2",
             "speed": 1.0,
             "dubbed_path": "output/jordi.central.edge.update/dubbed_chunk_5.24534375_6.629093750000001.mp3",
             "hash": "629484afdecb7641e35d686d6348cee4445611690f2f77831e892d52c3128bdd",