diff --git a/doc/source/services.yaml b/doc/source/services.yaml
index 63305a2..61f9d5a 100644
--- a/doc/source/services.yaml
+++ b/doc/source/services.yaml
@@ -29,12 +29,12 @@ service_categories:
         umn: https://docs.otc.t-systems.com/usermanual/deh/deh_01_0003.html
       ecs:
         title: Elastic Cloud Server
-        api: https://docs-int.otc.t-systems.com/api-ref/elastic-cloud-server/
-        umn: https://docs-int.otc.t-systems.com/umn/elastic-cloud-server/
+        api: https://docs-int.otc-service.com/api-ref/elastic-cloud-server/
+        umn: https://docs-int.otc-service.com/umn/elastic-cloud-server/
         links:
-          - url: https://docs-int.otc.t-systems.com/dev/elastic-cloud-server/
+          - url: https://docs-int.otc-service.com/dev/elastic-cloud-server/
             title: Developer Guide
-          - url: https://docs-int.otc.t-systems.com/dev/elastic-cloud-server/
+          - url: https://docs-int.otc-service.com/dev/elastic-cloud-server/
             title: Demo of any other doc
 
       ims:
@@ -255,8 +255,8 @@ service_categories:
             title: Operation Guide
       ma:
         title: ModelArts
-        api: https://docs-int.otc.t-systems.com/api-ref/modelarts/
-        umn: https://docs-int.otc.t-systems.com/umn/modelarts/
+        api: https://docs-int.otc-service.com/api-ref/modelarts/
+        umn: https://docs-int.otc-service.com/umn/modelarts/
 
   others:
     title: Others