diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2906008345..91a7dd260c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## next release
+## 3.321.12 - 2024-09-16
 
 * `Aws\PcaConnectorScep` - This is a general availability (GA) release of Connector for SCEP, a feature of AWS Private CA. Connector for SCEP links your SCEP-enabled and mobile device management systems to AWS Private CA for digital signature installation and certificate management.
 * `Aws\RDS` - Launching Global Cluster tagging.
diff --git a/src/Sdk.php b/src/Sdk.php
index 1163be6c3c..c4f96d5be8 100644
--- a/src/Sdk.php
+++ b/src/Sdk.php
@@ -777,7 +777,7 @@
  */
 class Sdk
 {
-    const VERSION = '3.321.11';
+    const VERSION = '3.321.12';
 
     /** @var array Arguments for creating clients */
     private $args;