diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7a91c7b..1d41acaa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://www.npmjs.com/package/@google-cloud/automl?activeTab=versions
 
+## [4.0.1](https://github.com/googleapis/nodejs-automl/compare/v4.0.0...v4.0.1) (2023-09-07)
+
+
+### Bug Fixes
+
+* Simplify logic for HTTP/1.1 REST fallback option ([#795](https://github.com/googleapis/nodejs-automl/issues/795)) ([a07f5cb](https://github.com/googleapis/nodejs-automl/commit/a07f5cb7b158fcccdca3e087f673e98e05bcded0))
+
 ## [4.0.0](https://github.com/googleapis/nodejs-automl/compare/v3.1.3...v4.0.0) (2023-08-10)
 
 
diff --git a/package.json b/package.json
index 9d191004..c5f0ff5d 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/automl",
   "description": "Cloud AutoML API client for Node.js",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "license": "Apache-2.0",
   "author": "Google LLC",
   "engines": {
diff --git a/samples/generated/v1/snippet_metadata.google.cloud.automl.v1.json b/samples/generated/v1/snippet_metadata.google.cloud.automl.v1.json
index f9ada848..2914767d 100644
--- a/samples/generated/v1/snippet_metadata.google.cloud.automl.v1.json
+++ b/samples/generated/v1/snippet_metadata.google.cloud.automl.v1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-automl",
-        "version": "4.0.0",
+        "version": "4.0.1",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/samples/generated/v1/snippet_metadata_google.cloud.automl.v1.json b/samples/generated/v1/snippet_metadata_google.cloud.automl.v1.json
index f9ada848..2914767d 100644
--- a/samples/generated/v1/snippet_metadata_google.cloud.automl.v1.json
+++ b/samples/generated/v1/snippet_metadata_google.cloud.automl.v1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-automl",
-        "version": "4.0.0",
+        "version": "4.0.1",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/samples/generated/v1beta1/snippet_metadata.google.cloud.automl.v1beta1.json b/samples/generated/v1beta1/snippet_metadata.google.cloud.automl.v1beta1.json
index e0dc5502..513656c1 100644
--- a/samples/generated/v1beta1/snippet_metadata.google.cloud.automl.v1beta1.json
+++ b/samples/generated/v1beta1/snippet_metadata.google.cloud.automl.v1beta1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-automl",
-        "version": "4.0.0",
+        "version": "4.0.1",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/samples/generated/v1beta1/snippet_metadata_google.cloud.automl.v1beta1.json b/samples/generated/v1beta1/snippet_metadata_google.cloud.automl.v1beta1.json
index e0dc5502..513656c1 100644
--- a/samples/generated/v1beta1/snippet_metadata_google.cloud.automl.v1beta1.json
+++ b/samples/generated/v1beta1/snippet_metadata_google.cloud.automl.v1beta1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-automl",
-        "version": "4.0.0",
+        "version": "4.0.1",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/samples/package.json b/samples/package.json
index 886dc602..d2e972a6 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -16,7 +16,7 @@
     "!test/"
   ],
   "dependencies": {
-    "@google-cloud/automl": "^4.0.0",
+    "@google-cloud/automl": "^4.0.1",
     "csv": "^6.0.0",
     "mathjs": "^11.0.0",
     "yargs": "^16.0.0"