diff --git a/ai-service/Dockerfile b/ai-service/Dockerfile
index e533ce6..90a7a28 100644
--- a/ai-service/Dockerfile
+++ b/ai-service/Dockerfile
@@ -1,27 +1,23 @@
 # ─── ShootTracker AI Service ──────────────────────────────────────────────────
-# Python + FastAPI + YOLOv8 + OpenCV
+# Python + FastAPI + YOLOv8 + OpenCV (PyTorch CPU-only, ~200MB)
 
 FROM python:3.11-slim
 
-# Dépendances système pour OpenCV (compatibles Debian Bookworm)
+# Dépendances système minimales
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    libglib2.0-0 \
-    libsm6 \
-    libxext6 \
-    libxrender1 \
-    libgl1 \
-    libgomp1 \
-    wget \
+    libglib2.0-0 libgl1 libgomp1 wget \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
-# Copier et installer les dépendances Python
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+# 1. PyTorch CPU-only en premier (index dédié = version légère ~200MB)
+RUN pip install --no-cache-dir \
+    torch==2.3.0 torchvision==0.18.0 \
+    --index-url https://download.pytorch.org/whl/cpu
 
-# Pré-télécharger le modèle YOLOv8n (pour éviter le téléchargement au premier démarrage)
-RUN python -c "from ultralytics import YOLO; YOLO('yolov8n.pt')" || echo "Download YOLOv8n on first run"
+# 2. Reste des dépendances (pas de torch/torchvision dans requirements.txt)
+COPY requirements-api.txt .
+RUN pip install --no-cache-dir -r requirements-api.txt
 
 # Copier le code
 COPY . .
@@ -33,7 +29,7 @@ ENV PYTHONUNBUFFERED=1
 ENV PYTHONDONTWRITEBYTECODE=1
 
 # Healthcheck
-HEALTHCHECK --interval=30s --timeout=15s --start-period=60s --retries=3 \
+HEALTHCHECK --interval=30s --timeout=15s --start-period=120s --retries=5 \
     CMD wget -qO- http://localhost:8000/health || exit 1
 
 EXPOSE 8000
diff --git a/ai-service/requirements-api.txt b/ai-service/requirements-api.txt
new file mode 100644
index 0000000..2c26222
--- /dev/null
+++ b/ai-service/requirements-api.txt
@@ -0,0 +1,10 @@
+fastapi==0.111.0
+uvicorn[standard]==0.30.1
+python-multipart==0.0.9
+pillow==10.3.0
+numpy==1.26.4
+opencv-python-headless==4.9.0.80
+ultralytics==8.2.37
+httpx==0.27.0
+pydantic==2.7.3
+python-dotenv==1.0.1