diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92b74b5fa8..f131632184 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## next release
+## 3.186.3 - 2021-07-30
 
 * `Aws\AppSync` - AWS AppSync now supports a new authorization mode allowing you to define your own authorization logic using an AWS Lambda function.
 * `Aws\ElasticLoadBalancingv2` - Client Port Preservation ALB Attribute Launch
diff --git a/src/Sdk.php b/src/Sdk.php
index b151c8bd8d..2aea0577fa 100644
--- a/src/Sdk.php
+++ b/src/Sdk.php
@@ -551,7 +551,7 @@
  */
 class Sdk
 {
-    const VERSION = '3.186.2';
+    const VERSION = '3.186.3';
 
     /** @var array Arguments for creating clients */
     private $args;