diff --git a/CHANGELOG.md b/CHANGELOG.md
index 668da3dd12..ad291fb5f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,7 +21,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Dependencies
 - Bumps `System.Diagnostics.DiagnosticSource` from 6.0.1 to 8.0.1
 - Bumps `YamlDotNet` from 16.0.0 to 16.1.3
-- Bumps `AWSSDK.Core` from 3.7.400.11 to 3.7.400.36
+- Bumps `AWSSDK.Core` from 3.7.400.11 to 3.7.400.40
 - Bumps `Fake.Core.SemVer` from 6.1.0 to 6.1.3
 - Bumps `Bogus` from 35.6.0 to 35.6.1
 - Bumps `Fake.Core.Environment` from 6.1.0 to 6.1.3
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 e84e60cb66..2f31f0b903 100644
--- a/src/OpenSearch.Net.Auth.AwsSigV4/OpenSearch.Net.Auth.AwsSigV4.csproj
+++ b/src/OpenSearch.Net.Auth.AwsSigV4/OpenSearch.Net.Auth.AwsSigV4.csproj
@@ -20,6 +20,6 @@
     <ProjectReference Include="$(SolutionRoot)\src\OpenSearch.Net\OpenSearch.Net.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="AWSSDK.Core" Version="3.7.400.36" />
+    <PackageReference Include="AWSSDK.Core" Version="3.7.400.40" />
   </ItemGroup>
 </Project>