diff --git a/DynamoDbEncryption/runtimes/net/DynamoDbEncryption.csproj b/DynamoDbEncryption/runtimes/net/DynamoDbEncryption.csproj
index 46ef23b41..70d6b8c36 100644
--- a/DynamoDbEncryption/runtimes/net/DynamoDbEncryption.csproj
+++ b/DynamoDbEncryption/runtimes/net/DynamoDbEncryption.csproj
@@ -58,7 +58,6 @@
 
   <ItemGroup>
     <PackageReference Include="AWSSDK.DynamoDBv2" Version="3.7.402.2"/>
-    <PackageReference Include="AWSSDK.Core" Version="3.7.400.38"/>
     <PackageReference Include="DafnyRuntime" Version="$(DafnyVersion)" />
     <ProjectReference Include="../../../submodules/MaterialProviders/AwsCryptographicMaterialProviders/runtimes/net/MPL.csproj"/>
     <!--