diff --git a/monitors/yumi/service_release.py b/monitors/yumi/service_release.py
index 98b5930..1d198e1 100644
--- a/monitors/yumi/service_release.py
+++ b/monitors/yumi/service_release.py
@@ -1425,14 +1425,14 @@ def ensure_dashboard_cdc_remote_env(host_entry: dict[str, Any]) -> dict[str, Any
 
 
 def ensure_dashboard_cdc_compose_service(host_name: str) -> dict[str, Any] | None:
-    # 新服务首次上线前远端还没有运行容器，不能依赖 docker inspect 自动生成模板。
+    # 既处理首次上线，也修正已存在服务从旧模板继承 service.env 的情况。
     model = load_local_host_compose_model(host_name)
     service_map = dict(model.get("services") or {})
-    if DASHBOARD_CDC_SERVICE_NAME in service_map:
-        return None
 
-    service_map[DASHBOARD_CDC_SERVICE_NAME] = {
-        "image": f"{HARBOR_REGISTRY}/{HARBOR_PROJECT}/dashboard-cdc-worker:bootstrap",
+    current = dict(service_map.get(DASHBOARD_CDC_SERVICE_NAME) or {})
+    desired = {
+        **current,
+        "image": current.get("image") or f"{HARBOR_REGISTRY}/{HARBOR_PROJECT}/dashboard-cdc-worker:bootstrap",
         "container_name": f"likei-{host_name}-{DASHBOARD_CDC_SERVICE_NAME}",
         "network_mode": "host",
         "restart": "unless-stopped",
@@ -1453,6 +1453,10 @@ def ensure_dashboard_cdc_compose_service(host_name: str) -> dict[str, Any] | Non
             "options": {"max-size": "200m", "max-file": "5"},
         },
     }
+    if current == desired:
+        return None
+
+    service_map[DASHBOARD_CDC_SERVICE_NAME] = desired
     return save_local_host_compose_model(host_name, service_map)