diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 63c3a394..d1a80f4d 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 4.20.0
+current_version = 4.21.0
 parse = (?P<major>\d+)
 	\.(?P<minor>\d+)
 	\.(?P<patch>\d+)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0803a5ea..36dbd3fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [4.21.0](https://github.com/recurly/recurly-client-php/tree/4.21.0) (2022-09-07)
+
+[Full Changelog](https://github.com/recurly/recurly-client-php/compare/4.20.0...4.21.0)
+
+
+**Merged Pull Requests**
+
+- Generated Latest Changes for v2021-02-25 [#713](https://github.com/recurly/recurly-client-php/pull/713) ([recurly-integrations](https://github.com/recurly-integrations))
+- Fixes bug with putDunningCampaignBulkUpdate [#706](https://github.com/recurly/recurly-client-php/pull/706) ([recurly-integrations](https://github.com/recurly-integrations))
+
+
+
 ## [4.20.0](https://github.com/recurly/recurly-client-php/tree/4.20.0) (2022-08-03)
 
 [Full Changelog](https://github.com/recurly/recurly-client-php/compare/4.19.0...4.20.0)
diff --git a/composer.json b/composer.json
index db43f7f2..41b93ce1 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
     "name": "recurly/recurly-client",
-    "version": "4.20.0",
+    "version": "4.21.0",
     "type": "library",
     "description": "The PHP client library for the Recurly API",
     "keywords": ["recurly", "payments", "pay"],
diff --git a/lib/recurly/version.php b/lib/recurly/version.php
index 79cba472..594cac09 100644
--- a/lib/recurly/version.php
+++ b/lib/recurly/version.php
@@ -4,5 +4,5 @@
 
 class Version
 {
-    public const CURRENT = '4.20.0';
+    public const CURRENT = '4.21.0';
 }