diff --git a/packages/google-cloud-oslogin/CHANGELOG.md b/packages/google-cloud-oslogin/CHANGELOG.md
index c5781c8de7c0..a5f598588f0f 100644
--- a/packages/google-cloud-oslogin/CHANGELOG.md
+++ b/packages/google-cloud-oslogin/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://www.npmjs.com/package/@google-cloud/os-login?activeTab=versions
 
+## [4.0.1](https://github.com/googleapis/nodejs-os-login/compare/v4.0.0...v4.0.1) (2022-06-30)
+
+
+### Bug Fixes
+
+* **docs:** describe fallback rest option ([#534](https://github.com/googleapis/nodejs-os-login/issues/534)) ([52d5d5c](https://github.com/googleapis/nodejs-os-login/commit/52d5d5cc99d50a9a469a54ca1c75943c082b26dc))
+
 ## [4.0.0](https://github.com/googleapis/nodejs-os-login/compare/v3.3.1...v4.0.0) (2022-05-20)
 
 
diff --git a/packages/google-cloud-oslogin/package.json b/packages/google-cloud-oslogin/package.json
index 98a677f84673..488390a6a03a 100644
--- a/packages/google-cloud-oslogin/package.json
+++ b/packages/google-cloud-oslogin/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/os-login",
   "description": "Google Cloud OS Login API client for Node.js",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "license": "Apache-2.0",
   "author": "Google Inc",
   "engines": {
diff --git a/packages/google-cloud-oslogin/samples/generated/v1/snippet_metadata.google.cloud.oslogin.v1.json b/packages/google-cloud-oslogin/samples/generated/v1/snippet_metadata.google.cloud.oslogin.v1.json
index c576c776abf7..068af9034997 100644
--- a/packages/google-cloud-oslogin/samples/generated/v1/snippet_metadata.google.cloud.oslogin.v1.json
+++ b/packages/google-cloud-oslogin/samples/generated/v1/snippet_metadata.google.cloud.oslogin.v1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-oslogin",
-        "version": "4.0.0",
+        "version": "4.0.1",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/packages/google-cloud-oslogin/samples/generated/v1beta/snippet_metadata.google.cloud.oslogin.v1beta.json b/packages/google-cloud-oslogin/samples/generated/v1beta/snippet_metadata.google.cloud.oslogin.v1beta.json
index a28f8b196438..896bcbe3f689 100644
--- a/packages/google-cloud-oslogin/samples/generated/v1beta/snippet_metadata.google.cloud.oslogin.v1beta.json
+++ b/packages/google-cloud-oslogin/samples/generated/v1beta/snippet_metadata.google.cloud.oslogin.v1beta.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-oslogin",
-        "version": "4.0.0",
+        "version": "4.0.1",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/packages/google-cloud-oslogin/samples/package.json b/packages/google-cloud-oslogin/samples/package.json
index f06ef67d8214..5b96a6babd35 100644
--- a/packages/google-cloud-oslogin/samples/package.json
+++ b/packages/google-cloud-oslogin/samples/package.json
@@ -14,7 +14,7 @@
     "test": "mocha"
   },
   "dependencies": {
-    "@google-cloud/os-login": "^4.0.0"
+    "@google-cloud/os-login": "^4.0.1"
   },
   "devDependencies": {
     "chai": "^4.2.0",