diff --git a/Directory.Packages.props b/Directory.Packages.props
index 8d27b5d84..f658959e1 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -63,7 +63,7 @@
 
   <!-- Testing dependencies -->
   <ItemGroup>
-    <PackageVersion Include="Anthropic" Version="12.17.0" />
+    <PackageVersion Include="Anthropic" Version="12.39.0" />
     <PackageVersion Include="coverlet.collector" Version="10.0.1">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>