diff --git a/eng/Signing.props b/eng/Signing.props
index 961bc8b7d49..bf440e85ece 100644
--- a/eng/Signing.props
+++ b/eng/Signing.props
@@ -28,6 +28,9 @@
     <FileSignInfo Include="Markdig.dll" CertificateName="3PartySHA2" />
     <FileSignInfo Include="MessagePack.dll" CertificateName="3PartySHA2" />
     <FileSignInfo Include="MessagePack.Annotations.dll" CertificateName="3PartySHA2" />
+    <FileSignInfo Include="ModelContextProtocol.AspNetCore.dll" CertificateName="3PartySHA2" />
+    <FileSignInfo Include="ModelContextProtocol.Core.dll" CertificateName="3PartySHA2" />
+    <FileSignInfo Include="ModelContextProtocol.dll" CertificateName="3PartySHA2" />
     <FileSignInfo Include="OpenAI.dll" CertificateName="3PartySHA2" />
     <FileSignInfo Include="Spectre.Console.dll" CertificateName="3PartySHA2" />
     <FileSignInfo Include="OpenTelemetry.dll" CertificateName="3PartySHA2" />