diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 5e7865ad0b7..b98cde98974 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -3,7 +3,7 @@
   "core/dev-packages/jsdoc-fresh": "5.0.4",
   "core/dev-packages/jsdoc-region-tag": "4.0.2",
   "core/dev-packages/pack-n-play": "4.2.2",
-  "core/generator/gapic-generator-typescript": "4.12.1",
+  "core/generator/gapic-generator-typescript": "4.12.2",
   "core/packages/gapic-node-processing": "0.1.9",
   "core/packages/gax": "5.0.7",
   "core/packages/gaxios": "7.2.0",
diff --git a/changelog.json b/changelog.json
index 7f6071e4c25..c7f69444ff0 100644
--- a/changelog.json
+++ b/changelog.json
@@ -1,6 +1,33 @@
 {
   "repository": "googleapis/google-cloud-node",
   "entries": [
+    {
+      "changes": [
+        {
+          "type": "fix",
+          "sha": "f120e17e588d0a0d7fbf037aa17ab1c869dda90e",
+          "message": "Update package.json template to monorepo repository/homepage schema and >=18 engines range",
+          "issues": [
+            "8840"
+          ],
+          "scope": "generator"
+        },
+        {
+          "type": "fix",
+          "sha": "8e5188877da05a226e9976b2e5057eaec5054d1f",
+          "message": "Add long dependency to CJS template and update baselines",
+          "issues": [
+            "8685"
+          ],
+          "scope": "generator"
+        }
+      ],
+      "version": "4.12.2",
+      "language": "JAVASCRIPT",
+      "artifactName": "@google-cloud/gapic-generator",
+      "id": "aaaaa793-c8ed-4e89-8453-6d4055c8b61a",
+      "createTime": "2026-07-10T21:08:09.756Z"
+    },
     {
       "changes": [
         {
@@ -81630,5 +81657,5 @@
       "createTime": "2023-01-28T04:18:24.718Z"
     }
   ],
-  "updateTime": "2026-07-08T17:10:18.122Z"
-}
+  "updateTime": "2026-07-10T21:08:09.756Z"
+}
\ No newline at end of file
diff --git a/core/generator/gapic-generator-typescript/CHANGELOG.md b/core/generator/gapic-generator-typescript/CHANGELOG.md
index ac7b94a6a81..2b33e7db875 100644
--- a/core/generator/gapic-generator-typescript/CHANGELOG.md
+++ b/core/generator/gapic-generator-typescript/CHANGELOG.md
@@ -1,6 +1,14 @@
 # Changelog
 
 
+## [4.12.2](https://github.com/googleapis/google-cloud-node/compare/gapic-generator-v4.12.1...gapic-generator-v4.12.2) (2026-07-10)
+
+
+### Bug Fixes
+
+* **generator:** Add long dependency to CJS template and update baselines ([#8685](https://github.com/googleapis/google-cloud-node/issues/8685)) ([8e51888](https://github.com/googleapis/google-cloud-node/commit/8e5188877da05a226e9976b2e5057eaec5054d1f))
+* **generator:** Update package.json template to monorepo repository/homepage schema and >=18 engines range ([#8840](https://github.com/googleapis/google-cloud-node/issues/8840)) ([f120e17](https://github.com/googleapis/google-cloud-node/commit/f120e17e588d0a0d7fbf037aa17ab1c869dda90e))
+
 ## [4.12.1](https://github.com/googleapis/google-cloud-node/compare/gapic-generator-v4.12.0...gapic-generator-v4.12.1) (2026-06-26)
 
 
diff --git a/core/generator/gapic-generator-typescript/package-lock.json b/core/generator/gapic-generator-typescript/package-lock.json
index e7827f139c7..98968f5f8a9 100644
--- a/core/generator/gapic-generator-typescript/package-lock.json
+++ b/core/generator/gapic-generator-typescript/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@google-cloud/gapic-generator",
-  "version": "4.12.1",
+  "version": "4.12.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@google-cloud/gapic-generator",
-      "version": "4.12.1",
+      "version": "4.12.2",
       "license": "Apache-2.0",
       "dependencies": {
         "@types/js-yaml": "^4.0.9",
diff --git a/core/generator/gapic-generator-typescript/package.json b/core/generator/gapic-generator-typescript/package.json
index 6628c6bae8b..415e32c1dd3 100644
--- a/core/generator/gapic-generator-typescript/package.json
+++ b/core/generator/gapic-generator-typescript/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@google-cloud/gapic-generator",
-  "version": "4.12.1",
+  "version": "4.12.2",
   "type": "module",
   "description": "Google API Client Library Generator for TypeScript, written in TypeScript.",
   "homepage": "https://github.com/googleapis/google-cloud-node/tree/main/core/generator/gapic-generator-typescript",