diff --git a/.gitea/workflows/cd.yaml b/.gitea/workflows/cd.yaml
index a4e30d35..2ddc5d60 100644
--- a/.gitea/workflows/cd.yaml
+++ b/.gitea/workflows/cd.yaml
@@ -129,16 +129,23 @@ jobs:
         run: |
           cd apps/api
           docker compose -f docker-compose.test.yml up -d --wait
-          # psql 從 postgres container 執行，不需要主機安裝 psql
+          # schema 初始化
           docker compose -f docker-compose.test.yml exec -T postgres-test \
             psql -U awoooi -d awoooi_test \
             -f /dev/stdin < tests/integration/setup_test_schema.sql
-          # 取 postgres container IP — runner 在 docker 內可直連 container IP
-          CONTAINER_NAME=$(docker ps --filter name=postgres-test --format '{{.Names}}' | head -1)
-          PG_IP=$(docker inspect "$CONTAINER_NAME" \
-            --format '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' | awk '{print $1}')
-          echo "postgres-test: $CONTAINER_NAME @ $PG_IP:5432"
-          TEST_DATABASE_URL="postgresql+asyncpg://awoooi:awoooi_test_2026@${PG_IP}:5432/awoooi_test?ssl=disable" \
+          # compose 網路名 (目錄名=api → api_default)
+          COMPOSE_NET=$(docker network ls --format '{{.Name}}' | grep '^api_default$' || \
+                        docker network ls --format '{{.Name}}' | grep 'default' | head -1)
+          echo "compose network: $COMPOSE_NET"
+          # 在同一 compose 網路的臨時 python container 內跑 pytest
+          # 掛載原始碼 + venv，hostname=postgres-test 直連 5432
+          docker run --rm \
+            --network "$COMPOSE_NET" \
+            -v /opt/api-venv:/opt/api-venv \
+            -v "$(pwd):/workspace" \
+            -w /workspace \
+            -e TEST_DATABASE_URL="postgresql+asyncpg://awoooi:awoooi_test_2026@postgres-test:5432/awoooi_test?ssl=disable" \
+            python:3.11-slim \
             /opt/api-venv/bin/pytest tests/integration/test_b5_core_flows.py -v --tb=short
           TEST_EXIT=$?
           docker compose -f docker-compose.test.yml down -v 2>/dev/null || true