diff --git a/docker/docker-compose-dev.yaml b/docker/docker-compose-dev.yaml
index 07216279..fd39ac48 100644
--- a/docker/docker-compose-dev.yaml
+++ b/docker/docker-compose-dev.yaml
@@ -150,6 +150,9 @@ services:
         UV_IMAGE: ${UV_IMAGE:-ghcr.io/astral-sh/uv:0.7.20}
         UV_INDEX_URL: ${UV_INDEX_URL:-https://pypi.org/simple}
     container_name: deer-flow-gateway
+    depends_on:
+      postgres:
+        condition: service_healthy
     command: sh -c "{ cd backend && (uv sync || (echo '[startup] uv sync failed; recreating .venv and retrying once' && uv venv --allow-existing .venv && uv sync)) && PYTHONPATH=. uv run uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001 --reload --reload-include='*.yaml .env'; } > /app/logs/gateway.log 2>&1"
     volumes:
       - ../backend/:/app/backend/