diff --git a/src/libs/Anthropic/Anthropic.csproj b/src/libs/Anthropic/Anthropic.csproj
index bb8f778..995e7cb 100644
--- a/src/libs/Anthropic/Anthropic.csproj
+++ b/src/libs/Anthropic/Anthropic.csproj
@@ -18,7 +18,7 @@
   <ItemGroup>
     <PackageReference Include="CSharpToJsonSchema" Version="3.10.1" />
     <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="9.0.0" />
-    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.0.0-preview.9.24556.5" />
+    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.0.1-preview.1.24570.5" />
     <PackageReference Include="PolySharp" Version="1.14.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/src/libs/Anthropic/Extensions/AnthropicClient.ChatClient.cs b/src/libs/Anthropic/Extensions/AnthropicClient.ChatClient.cs
index 23732e9..c7c748a 100644
--- a/src/libs/Anthropic/Extensions/AnthropicClient.ChatClient.cs
+++ b/src/libs/Anthropic/Extensions/AnthropicClient.ChatClient.cs
@@ -21,7 +21,10 @@ public partial class AnthropicClient : IChatClient
     ChatClientMetadata IChatClient.Metadata => _metadata ??= new(nameof(AnthropicClient), this.BaseUri);
 
     /// <inheritdoc />
-    TService? IChatClient.GetService<TService>(object? key) where TService : class => this as TService;
+    object? IChatClient.GetService(Type serviceType, object? key)
+    {
+        return key is null && serviceType?.IsInstanceOfType(this) is true ? this : null;
+    }
 
     async Task<ChatCompletion> IChatClient.CompleteAsync(
         IList<ChatMessage> chatMessages, ChatOptions? options, CancellationToken cancellationToken)