diff --git a/src/HyperV.Mcp.Server/HyperV.Mcp.Server.csproj b/src/HyperV.Mcp.Server/HyperV.Mcp.Server.csproj
index 59fc90f..fe79ad9 100644
--- a/src/HyperV.Mcp.Server/HyperV.Mcp.Server.csproj
+++ b/src/HyperV.Mcp.Server/HyperV.Mcp.Server.csproj
@@ -9,14 +9,14 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.9" />
-    <PackageReference Include="ModelContextProtocol" Version="1.4.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.12" />
+    <PackageReference Include="ModelContextProtocol" Version="1.4.1" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.9" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="10.0.9" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.9" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="10.0.12" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.12" />
     <!-- Phase 2 (issue #52): in-process PowerShell SDK runspace for IPowerShellHost.
          See /myplans/remoting/powershell-direct/powershell-direct-design.md — PSD-D5. -->
-    <PackageReference Include="Microsoft.PowerShell.SDK" Version="7.4.17" />
+    <PackageReference Include="Microsoft.PowerShell.SDK" Version="7.4.20" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/tests/HyperV.Mcp.Server.Tests/HyperV.Mcp.Server.Tests.csproj b/tests/HyperV.Mcp.Server.Tests/HyperV.Mcp.Server.Tests.csproj
index ae0fbb4..6b96f91 100644
--- a/tests/HyperV.Mcp.Server.Tests/HyperV.Mcp.Server.Tests.csproj
+++ b/tests/HyperV.Mcp.Server.Tests/HyperV.Mcp.Server.Tests.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.7.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
@@ -17,11 +17,11 @@
     </PackageReference>
     <PackageReference Include="FluentAssertions" Version="7.2.2" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.9" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.12" />
     <PackageReference Include="System.ServiceProcess.ServiceController" Version="8.0.1" />
     <!-- Provides the "GitHubActions" test logger used by the CI workflows
          (.github/workflows/ci.yml and ci-hyperv.yml) for inline test annotations. -->
-    <PackageReference Include="GitHubActionsTestLogger" Version="3.0.4" />
+    <PackageReference Include="GitHubActionsTestLogger" Version="3.0.5" />
   </ItemGroup>
 
   <ItemGroup>