diff --git a/api/services/pipecat/run_pipeline.py b/api/services/pipecat/run_pipeline.py
index 32ec2fa0..496f7503 100644
--- a/api/services/pipecat/run_pipeline.py
+++ b/api/services/pipecat/run_pipeline.py
@@ -80,7 +80,7 @@ from pipecat.turns.user_mute import (
 )
 from pipecat.turns.user_start import (
     ExternalUserTurnStartStrategy,
-    TranscriptionUserTurnStartStrategy,
+    ProvisionalVADUserTurnStartStrategy,
 )
 from pipecat.turns.user_start.vad_user_turn_start_strategy import (
     VADUserTurnStartStrategy,
@@ -646,8 +646,7 @@ async def _run_pipeline(
             smart_turn_params = SmartTurnParams(stop_secs=smart_turn_stop_secs)
             user_turn_strategies = UserTurnStrategies(
                 start=[
-                    VADUserTurnStartStrategy(),
-                    TranscriptionUserTurnStartStrategy(),
+                    ProvisionalVADUserTurnStartStrategy(),
                 ],
                 stop=[
                     TurnAnalyzerUserTurnStopStrategy(
@@ -659,8 +658,7 @@ async def _run_pipeline(
             # Transcription-based (default): best for short 1-2 word responses
             user_turn_strategies = UserTurnStrategies(
                 start=[
-                    VADUserTurnStartStrategy(),
-                    TranscriptionUserTurnStartStrategy(),
+                    ProvisionalVADUserTurnStartStrategy(),
                 ],
                 stop=[SpeechTimeoutUserTurnStopStrategy()],
             )
diff --git a/api/services/pipecat/service_factory.py b/api/services/pipecat/service_factory.py
index 1dc27318..8f149157 100644
--- a/api/services/pipecat/service_factory.py
+++ b/api/services/pipecat/service_factory.py
@@ -194,6 +194,7 @@ def create_stt_service(
         return OpenAISTTService(
             api_key=user_config.stt.api_key,
             settings=OpenAISTTSettings(model=user_config.stt.model),
+            should_interrupt=False,  # Let UserAggregator own interruption confirmation.
             **kwargs,
         )
     elif user_config.stt.provider == ServiceProviders.GOOGLE.value:
diff --git a/pipecat b/pipecat
index afe5b6b6..d0ed1ca7 160000
--- a/pipecat
+++ b/pipecat
@@ -1 +1 @@
-Subproject commit afe5b6b6c90ad04557ad93b69f7f6ba662c2072e
+Subproject commit d0ed1ca7ead5935cf3622e668f3d424f273bf086