diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f3b83bb..3f3be17a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@
 
 [1]: https://www.npmjs.com/package/@google-cloud/speech?activeTab=versions
 
+### [4.5.3](https://www.github.com/googleapis/nodejs-speech/compare/v4.5.2...v4.5.3) (2021-06-29)
+
+
+### Bug Fixes
+
+* **deps:** google-gax v2.17.0 with mTLS ([#772](https://www.github.com/googleapis/nodejs-speech/issues/772)) ([582e5b7](https://www.github.com/googleapis/nodejs-speech/commit/582e5b71c68be635f7ce775f06d5e7b02180fbef))
+* make request optional in all cases ([#768](https://www.github.com/googleapis/nodejs-speech/issues/768)) ([83e1b7b](https://www.github.com/googleapis/nodejs-speech/commit/83e1b7bd4cc2d6ffd95769a4a6f519ab23b9bc71))
+
 ### [4.5.2](https://www.github.com/googleapis/nodejs-speech/compare/v4.5.1...v4.5.2) (2021-05-25)
 
 
diff --git a/package.json b/package.json
index 46516c32..9b7d6c74 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/speech",
   "description": "Cloud Speech Client Library for Node.js",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {
diff --git a/samples/package.json b/samples/package.json
index 412c44e0..cae8ab5b 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -15,7 +15,7 @@
     "test": "c8 mocha system-test --timeout 600000"
   },
   "dependencies": {
-    "@google-cloud/speech": "^4.5.2",
+    "@google-cloud/speech": "^4.5.3",
     "@google-cloud/storage": "^5.0.0",
     "chalk": "^4.0.0",
     "node-record-lpcm16": "^1.0.1",