diff --git a/packages/google-cloud-billing-budgets/CHANGELOG.md b/packages/google-cloud-billing-budgets/CHANGELOG.md
index 3765bf45fb5..a88f956908c 100644
--- a/packages/google-cloud-billing-budgets/CHANGELOG.md
+++ b/packages/google-cloud-billing-budgets/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [4.0.0](https://github.com/googleapis/nodejs-billing-budgets/compare/v3.3.0...v4.0.0) (2022-05-20)
+
+
+### ⚠ BREAKING CHANGES
+
+* update library to use Node 12 (#309)
+
+### Build System
+
+* update library to use Node 12 ([#309](https://github.com/googleapis/nodejs-billing-budgets/issues/309)) ([de1bec1](https://github.com/googleapis/nodejs-billing-budgets/commit/de1bec1634f588e0b04f8ba1ec5e96551771a271))
+
 ## [3.3.0](https://www.github.com/googleapis/nodejs-billing-budgets/compare/v3.2.8...v3.3.0) (2021-08-23)
 
 
diff --git a/packages/google-cloud-billing-budgets/package.json b/packages/google-cloud-billing-budgets/package.json
index 3e7fd9092f0..0385fa753da 100644
--- a/packages/google-cloud-billing-budgets/package.json
+++ b/packages/google-cloud-billing-budgets/package.json
@@ -1,7 +1,7 @@
 {
   "repository": "googleapis/nodejs-billing-budgets",
   "name": "@google-cloud/billing-budgets",
-  "version": "3.3.0",
+  "version": "4.0.0",
   "author": "Google LLC",
   "description": "Budgets client for Node.js",
   "main": "build/src/index.js",
diff --git a/packages/google-cloud-billing-budgets/samples/generated/v1/snippet_metadata.google.cloud.billing.budgets.v1.json b/packages/google-cloud-billing-budgets/samples/generated/v1/snippet_metadata.google.cloud.billing.budgets.v1.json
index 369a9ca2d11..314cf7d8d4d 100644
--- a/packages/google-cloud-billing-budgets/samples/generated/v1/snippet_metadata.google.cloud.billing.budgets.v1.json
+++ b/packages/google-cloud-billing-budgets/samples/generated/v1/snippet_metadata.google.cloud.billing.budgets.v1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-budgets",
-        "version": "3.3.0",
+        "version": "4.0.0",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/packages/google-cloud-billing-budgets/samples/generated/v1beta1/snippet_metadata.google.cloud.billing.budgets.v1beta1.json b/packages/google-cloud-billing-budgets/samples/generated/v1beta1/snippet_metadata.google.cloud.billing.budgets.v1beta1.json
index de16a6788a2..07d91e05331 100644
--- a/packages/google-cloud-billing-budgets/samples/generated/v1beta1/snippet_metadata.google.cloud.billing.budgets.v1beta1.json
+++ b/packages/google-cloud-billing-budgets/samples/generated/v1beta1/snippet_metadata.google.cloud.billing.budgets.v1beta1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-budgets",
-        "version": "3.3.0",
+        "version": "4.0.0",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/packages/google-cloud-billing-budgets/samples/package.json b/packages/google-cloud-billing-budgets/samples/package.json
index eacacb79a45..e65e1c56459 100644
--- a/packages/google-cloud-billing-budgets/samples/package.json
+++ b/packages/google-cloud-billing-budgets/samples/package.json
@@ -15,7 +15,7 @@
     "test": "c8 mocha system-test --timeout=800000"
   },
   "dependencies": {
-    "@google-cloud/billing-budgets": "^3.3.0"
+    "@google-cloud/billing-budgets": "^4.0.0"
   },
   "devDependencies": {
     "c8": "^7.0.0",