diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d00ccc12eb30..d13a181fb58a 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -769,7 +769,7 @@
   "google-cloud-service_management-v1+FILLER": "0.0.0",
   "google-cloud-service_usage": "1.4.2",
   "google-cloud-service_usage+FILLER": "0.0.0",
-  "google-cloud-service_usage-v1": "1.5.1",
+  "google-cloud-service_usage-v1": "1.6.0",
   "google-cloud-service_usage-v1+FILLER": "0.0.0",
   "google-cloud-shell": "1.5.2",
   "google-cloud-shell+FILLER": "0.0.0",
diff --git a/google-cloud-service_usage-v1/CHANGELOG.md b/google-cloud-service_usage-v1/CHANGELOG.md
index de319e7bb83d..7fbf47a5bf68 100644
--- a/google-cloud-service_usage-v1/CHANGELOG.md
+++ b/google-cloud-service_usage-v1/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 1.6.0 (2026-03-19)
+
+#### Features
+
+* Upgrade dependencies for Ruby v4.0 and drop Ruby v3.1 support
+
 ### 1.5.1 (2025-10-27)
 
 #### Documentation
diff --git a/google-cloud-service_usage-v1/lib/google/cloud/service_usage/v1/version.rb b/google-cloud-service_usage-v1/lib/google/cloud/service_usage/v1/version.rb
index 65ee47ad9b5a..88a53af029f6 100644
--- a/google-cloud-service_usage-v1/lib/google/cloud/service_usage/v1/version.rb
+++ b/google-cloud-service_usage-v1/lib/google/cloud/service_usage/v1/version.rb
@@ -21,7 +21,7 @@ module Google
   module Cloud
     module ServiceUsage
       module V1
-        VERSION = "1.5.1"
+        VERSION = "1.6.0"
       end
     end
   end
diff --git a/google-cloud-service_usage-v1/snippets/snippet_metadata_google.api.serviceusage.v1.json b/google-cloud-service_usage-v1/snippets/snippet_metadata_google.api.serviceusage.v1.json
index e8dffa73825d..8ef400570e83 100644
--- a/google-cloud-service_usage-v1/snippets/snippet_metadata_google.api.serviceusage.v1.json
+++ b/google-cloud-service_usage-v1/snippets/snippet_metadata_google.api.serviceusage.v1.json
@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-service_usage-v1",
-    "version": "1.5.1",
+    "version": "1.6.0",
     "language": "RUBY",
     "apis": [
       {