diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6102d8b5..f619d177 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Security
 
 ### Dependencies
+- Bump `github.com/aws/aws-sdk-go` from 1.55.5 to 1.55.6 ([#657](https://github.com/opensearch-project/opensearch-go/pull/657))
 
 ## [4.3.0]
 
diff --git a/go.mod b/go.mod
index 290195e1..06dd7e55 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/opensearch-project/opensearch-go/v4
 go 1.21
 
 require (
-	github.com/aws/aws-sdk-go v1.55.5
+	github.com/aws/aws-sdk-go v1.55.6
 	github.com/aws/aws-sdk-go-v2 v1.32.2
 	github.com/aws/aws-sdk-go-v2/config v1.27.43
 	github.com/stretchr/testify v1.9.0
diff --git a/go.sum b/go.sum
index af4003db..93997073 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/aws/aws-sdk-go v1.55.5 h1:KKUZBfBoyqy5d3swXyiC7Q76ic40rYcbqH7qjh59kzU=
-github.com/aws/aws-sdk-go v1.55.5/go.mod h1:eRwEWoyTWFMVYVQzKMNHWP5/RV4xIUGMQfXQHfHkpNU=
+github.com/aws/aws-sdk-go v1.55.6 h1:cSg4pvZ3m8dgYcgqB97MrcdjUmZ1BeMYKUxMMB89IPk=
+github.com/aws/aws-sdk-go v1.55.6/go.mod h1:eRwEWoyTWFMVYVQzKMNHWP5/RV4xIUGMQfXQHfHkpNU=
 github.com/aws/aws-sdk-go-v2 v1.32.2 h1:AkNLZEyYMLnx/Q/mSKkcMqwNFXMAvFto9bNsHqcTduI=
 github.com/aws/aws-sdk-go-v2 v1.32.2/go.mod h1:2SK5n0a2karNTv5tbP1SjsX0uhttou00v/HpXKM1ZUo=
 github.com/aws/aws-sdk-go-v2/config v1.27.43 h1:p33fDDihFC390dhhuv8nOmX419wjOSDQRb+USt20RrU=