diff --git a/package-lock.json b/package-lock.json
index 1c0537e..59aef72 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "gocardless-nodejs",
-  "version": "3.20.0",
+  "version": "3.21.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 3f1b624..1a8d485 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gocardless-nodejs",
-  "version": "3.20.0",
+  "version": "3.21.0",
   "description": "Node.js client for the GoCardless API - a powerful, simple solution for the collection of recurring bank-to-bank payments",
   "author": "GoCardless Ltd <client-libraries@gocardless.com>",
   "repository": {
diff --git a/src/constants.ts b/src/constants.ts
index 5f90866..3a84471 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -5,7 +5,7 @@ enum Environments {
   Sandbox = 'SANDBOX',
 }
 
-const CLIENT_VERSION = '3.20.0';
+const CLIENT_VERSION = '3.21.0';
 const API_VERSION = '2015-07-06';
 
 export { Environments, CLIENT_VERSION, API_VERSION };