diff --git a/Directory.Packages.props b/Directory.Packages.props
index b069bcfe39..6bfdadba84 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -23,7 +23,7 @@
     <PackageVersion Include="LoxSmoke.DocXml" Version="3.9.0" />
     <!-- MCP SDK (aligned with the MCP 2026-07-28 specification) -->
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.10.0" />
-    <PackageVersion Include="ModelContextProtocol" Version="2.1.0" />
+    <PackageVersion Include="ModelContextProtocol" Version="2.2.0" />
     <!-- Test dependencies -->
     <PackageVersion Include="bunit" Version="2.9.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
@@ -37,7 +37,7 @@
     <PackageVersion Include="Microsoft.Testing.Extensions.TrxReport" Version="2.3.3" />
     <!-- Shared dependencies -->
     <PackageVersion Include="Markdig.Signed" Version="1.3.2" />
-    <PackageVersion Include="Meziantou.Analyzer" Version="3.0.147" />
+    <PackageVersion Include="Meziantou.Analyzer" Version="3.0.177" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="5.3.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.6.0" />
     <PackageVersion Include="Microsoft.OData.Client" Version="8.4.4" />