diff --git a/otc_metadata/data/documents/ucs-api-ref.yaml b/otc_metadata/data/documents/ucs-api-ref.yaml
index 010364cc..86d4e6ea 100644
--- a/otc_metadata/data/documents/ucs-api-ref.yaml
+++ b/otc_metadata/data/documents/ucs-api-ref.yaml
@@ -1,5 +1,5 @@
 ---
-environment: public
+environment: internal
 hc_location: api/ucs
 html_location: docs/ucs/api-ref
 link: /ubiquitous-cloud-native-service/api-ref/
diff --git a/otc_metadata/data/documents/ucs-umn.yaml b/otc_metadata/data/documents/ucs-umn.yaml
index d54abe4b..4600fd77 100644
--- a/otc_metadata/data/documents/ucs-umn.yaml
+++ b/otc_metadata/data/documents/ucs-umn.yaml
@@ -1,5 +1,5 @@
 ---
-environment: public
+environment: internal
 hc_location: usermanual/ucs
 html_location: docs/ucs/umn
 link: /ubiquitous-cloud-native-service/umn/
diff --git a/otc_metadata/data/services/ucs.yaml b/otc_metadata/data/services/ucs.yaml
index 487662fc..5dc662e2 100644
--- a/otc_metadata/data/services/ucs.yaml
+++ b/otc_metadata/data/services/ucs.yaml
@@ -1,5 +1,5 @@
 ---
-environment: public
+environment: internal
 repositories:
 - environment: internal
   repo: docs/ubiquitous-cloud-native-service