diff --git a/aloha-csharp/Agent/Agent.csproj b/aloha-csharp/Agent/Agent.csproj
index f31f0c3..8e05639 100644
--- a/aloha-csharp/Agent/Agent.csproj
+++ b/aloha-csharp/Agent/Agent.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="Microsoft.SemanticKernel" Version="1.67.0" />
     <PackageReference Include="Grpc.AspNetCore" Version="2.71.0" />
     <PackageReference Include="Grpc.AspNetCore.Server" Version="2.71.0" />
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.11" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.10" />
     <PackageReference Include="System.Text.Json" Version="9.0.10" />
   </ItemGroup>