diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37b641578e..4e13044bde 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## next release
+## 3.277.9 - 2023-08-04
 
 * `Aws\ACMPCA` - Documentation correction for AWS Private CA
 * `Aws\Connect` - Added a new API UpdateRoutingProfileAgentAvailabilityTimer to update agent availability timer of a routing profile.
diff --git a/src/Sdk.php b/src/Sdk.php
index 9bb416c0fc..4a4a652729 100644
--- a/src/Sdk.php
+++ b/src/Sdk.php
@@ -711,7 +711,7 @@
  */
 class Sdk
 {
-    const VERSION = '3.277.8';
+    const VERSION = '3.277.9';
 
     /** @var array Arguments for creating clients */
     private $args;