diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b5161bf13..b53eeed16c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Added support for the `Ext` parameter on `SearchRequest` ([#738](https://github.com/opensearch-project/opensearch-net/pull/738))
 
 ### Dependencies
-- Bumps `AWSSDK.Core` from 3.7.204.12 to 3.7.400.2
+- Bumps `AWSSDK.Core` from 3.7.204.12 to 3.7.400.4
 - Bumps `Bogus` from 35.3.0 to 35.6.0
 - Bumps `xunit` from 2.7.1 to 2.8.0
 - Bumps `FSharp.Core` from 8.0.100 to 8.0.301
diff --git a/src/OpenSearch.Net.Auth.AwsSigV4/OpenSearch.Net.Auth.AwsSigV4.csproj b/src/OpenSearch.Net.Auth.AwsSigV4/OpenSearch.Net.Auth.AwsSigV4.csproj
index 552a796e96..72831653b3 100644
--- a/src/OpenSearch.Net.Auth.AwsSigV4/OpenSearch.Net.Auth.AwsSigV4.csproj
+++ b/src/OpenSearch.Net.Auth.AwsSigV4/OpenSearch.Net.Auth.AwsSigV4.csproj
@@ -20,7 +20,7 @@
     <ProjectReference Include="$(SolutionRoot)\src\OpenSearch.Net\OpenSearch.Net.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="AWSSDK.Core" Version="3.7.400.2" />
+    <PackageReference Include="AWSSDK.Core" Version="3.7.400.4" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)'=='net461'">
     <Reference Include="System.Web" />