diff --git a/Directory.Packages.props b/Directory.Packages.props
index a9a88551..f4d6a701 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -39,7 +39,7 @@
   </ItemGroup>
   <ItemGroup Label="Azure OpenAI SDK + Anthropic SDK - built-in model-provider factories (v0.17 Pillar B PR 2).">
     <PackageVersion Include="Azure.AI.OpenAI" Version="2.2.0-beta.4" />
-    <PackageVersion Include="Anthropic.SDK" Version="5.5.1" />
+    <PackageVersion Include="Anthropic.SDK" Version="5.10.0" />
   </ItemGroup>
   <ItemGroup Label="Prometheus metrics (Vais.Agents.Gateways.Prometheus). Core library only; prometheus-net.AspNetCore is host-side.">
     <PackageVersion Include="prometheus-net" Version="8.2.1" />
diff --git a/src/Vais.Agents.Runtime.Plugins.Container/Vais.Agents.Runtime.Plugins.Container.csproj b/src/Vais.Agents.Runtime.Plugins.Container/Vais.Agents.Runtime.Plugins.Container.csproj
index e5764762..b86dca73 100644
--- a/src/Vais.Agents.Runtime.Plugins.Container/Vais.Agents.Runtime.Plugins.Container.csproj
+++ b/src/Vais.Agents.Runtime.Plugins.Container/Vais.Agents.Runtime.Plugins.Container.csproj
@@ -32,6 +32,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Anthropic.SDK" />
     <PackageReference Include="Microsoft.CodeAnalysis.PublicApiAnalyzers">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>