diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40973bc..677697d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [4.0.1] - 2022-02-09
+- Patch vulnerability in json-schema dependency
+- Patch vulnerabilities in Mocha and ESLint developer dependencies
+
 ## [4.0.0] - 2021-08-10
 - Update dependencies to patch vulnerabilities
 - Fix test suite to work using TaxJar production API token
@@ -102,7 +106,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [1.0.0] - 2015-07-22
 - Initial release
 
-[Unreleased]: https://github.com/taxjar/taxjar-node/compare/v4.0.0...HEAD
+[Unreleased]: https://github.com/taxjar/taxjar-node/compare/v4.0.1...HEAD
+[4.0.1]: https://github.com/taxjar/taxjar-node/compare/v4.0.0...v4.0.1
 [4.0.0]: https://github.com/taxjar/taxjar-node/compare/v3.2.2...v4.0.0
 [3.2.2]: https://github.com/taxjar/taxjar-node/compare/v3.2.1...v3.2.2
 [3.2.1]: https://github.com/taxjar/taxjar-node/compare/v3.2.0...v3.2.1
diff --git a/package-lock.json b/package-lock.json
index 20d2c24..37bf23b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "taxjar",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 1a3a4c2..3008d64 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "taxjar",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "description": "TaxJar Sales Tax API for Node",
   "homepage": "https://github.com/taxjar/taxjar-node",
   "author": "TaxJar <jake@taxjar.com> (https://www.taxjar.com/)",