diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 2c21c1d..180551b 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -173,4 +173,8 @@ jobs:
           docker stop $SERVICE 2>/dev/null || true
           docker rm $SERVICE 2>/dev/null || true
           docker run -d --name $SERVICE --restart=always -p $PORT:$PORT $IMAGE
+          # 清理同一服务旧镜像，避免磁盘被历史 tag 占满
+          docker images \"$REGISTRY/$REGISTRY_NAMESPACE/$SERVICE\" --format '{{.Repository}}:{{.Tag}}' \
+            | grep -v -x \"$IMAGE\" \
+            | xargs -r docker rmi -f
           "