diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index c328103dab44..0c4330f42dcb 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -5,7 +5,7 @@
   "google-ads-ad_manager-v1+FILLER": "0.0.0",
   "google-ads-data_manager": "0.4.2",
   "google-ads-data_manager+FILLER": "0.0.0",
-  "google-ads-data_manager-v1": "0.8.1",
+  "google-ads-data_manager-v1": "0.9.0",
   "google-ads-data_manager-v1+FILLER": "0.0.0",
   "google-ads-marketing_platform-admin": "0.3.1",
   "google-ads-marketing_platform-admin+FILLER": "0.0.0",
diff --git a/google-ads-data_manager-v1/CHANGELOG.md b/google-ads-data_manager-v1/CHANGELOG.md
index 1ba9605afc14..bb45492e3d30 100644
--- a/google-ads-data_manager-v1/CHANGELOG.md
+++ b/google-ads-data_manager-v1/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 0.9.0 (2026-09-17)
+
+#### Features
+
+* update API sources and regenerate ([#36568](https://github.com/googleapis/google-cloud-ruby/issues/36568)) 
+
 ### 0.8.1 (2026-08-11)
 
 #### Documentation
diff --git a/google-ads-data_manager-v1/lib/google/ads/data_manager/v1/version.rb b/google-ads-data_manager-v1/lib/google/ads/data_manager/v1/version.rb
index 05a4109f6330..313b9e63741f 100644
--- a/google-ads-data_manager-v1/lib/google/ads/data_manager/v1/version.rb
+++ b/google-ads-data_manager-v1/lib/google/ads/data_manager/v1/version.rb
@@ -21,7 +21,7 @@ module Google
   module Ads
     module DataManager
       module V1
-        VERSION = "0.8.1"
+        VERSION = "0.9.0"
       end
     end
   end
diff --git a/librarian.yaml b/librarian.yaml
index 06d415d791eb..38de80ac9749 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -48,7 +48,7 @@ libraries:
       wrapper_of:
         - v1:0.0
   - name: google-ads-data_manager-v1
-    version: 0.8.1
+    version: 0.9.0
     apis:
       - path: google/ads/datamanager/v1
   - name: google-ads-marketing_platform-admin