diff --git a/ai/Dockerfile b/ai/Dockerfile
index 7342300..1d319cf 100644
--- a/ai/Dockerfile
+++ b/ai/Dockerfile
@@ -43,14 +43,14 @@ COPY --chown=hermes:hermes . .
 RUN uv venv && \
     uv pip install --no-cache-dir piper-tts sounddevice numpy faster-whisper
 
-# ---------- Télécharger la voix Piper Ryan ----------
+# ---------- Télécharger la voix Piper Norman ----------
 RUN mkdir -p /opt/hermes/.venv/share/piper/voices && \
     /opt/hermes/.venv/bin/python3 /dev/stdin << 'PYEOF' && rm -f /tmp/dl_voice.py
 import urllib.request
 base = '/opt/hermes/.venv/share/piper/voices'
-url = 'https://huggingface.co/rhasspy/piper-voices/resolve/main/en/en_US/ryan/high/en_US-ryan-high.onnx'
-urllib.request.urlretrieve(url, base + '/en_US-ryan-high.onnx')
-urllib.request.urlretrieve(url + '.json', base + '/en_US-ryan-high.onnx.json')
+url = 'https://huggingface.co/rhasspy/piper-voices/resolve/main/en/en_US/norman/medium/en_US-norman-medium.onnx'
+urllib.request.urlretrieve(url, base + '/en_US-norman-medium.onnx')
+urllib.request.urlretrieve(url + '.json', base + '/en_US-norman-medium.onnx.json')
 PYEOF
 
 # ---------- Patch tts_tool.py: replace Edge TTS fallback with Piper ----------