diff --git a/ci.global.json b/ci.global.json
index 14b50cf1..e04f218f 100644
--- a/ci.global.json
+++ b/ci.global.json
@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": "10.0.302"
+    "version": "10.0.401"
   }
 }
diff --git a/src/SeqCli/SeqCli.csproj b/src/SeqCli/SeqCli.csproj
index 346d0ed8..84e85cbd 100644
--- a/src/SeqCli/SeqCli.csproj
+++ b/src/SeqCli/SeqCli.csproj
@@ -27,7 +27,7 @@
     <Content Include="Skills\Resources\**\*" Link="Skills\%(RecursiveDir)%(Filename)%(Extension)" CopyToOutputDirectory="PreserveNewest" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="ModelContextProtocol" Version="1.4.1" />
+    <PackageReference Include="ModelContextProtocol" Version="2.2.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageReference Include="Seq.Api" Version="2026.1.0" />
     <PackageReference Include="Serilog" Version="4.4.0" />
@@ -35,14 +35,14 @@
     <PackageReference Include="Serilog.Formatting.Compact.Reader" Version="4.0.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
     <PackageReference Include="Serilog.AspNetCore" Version="10.0.0" />
-    <PackageReference Include="Autofac" Version="9.3.1" />
+    <PackageReference Include="Autofac" Version="9.3.4" />
     <PackageReference Include="Autofac.Extensions.DependencyInjection" Version="11.0.2" />
     <PackageReference Include="Superpower" Version="3.2.1" />
-    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="10.0.10" />
-    <PackageReference Include="System.ServiceProcess.ServiceController" Version="10.0.10" />
+    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="10.0.12" />
+    <PackageReference Include="System.ServiceProcess.ServiceController" Version="10.0.12" />
     <PackageReference Include="Serilog.Sinks.Seq" Version="9.1.0" />
     <PackageReference Include="Seq.Apps" Version="2023.4.0" />
-    <PackageReference Include="Seq.Syntax" Version="2.0.0-dev-00103" />
+    <PackageReference Include="Seq.Syntax" Version="2.0.0" />
     <PackageReference Include="Tavis.UriTemplates" Version="2.0.0" />
   </ItemGroup>
   <ItemGroup>
diff --git a/test/SeqCli.EndToEnd/Mcp/McpToolTestCase.cs b/test/SeqCli.EndToEnd/Mcp/McpToolTestCase.cs
index 80d2459f..af49598e 100644
--- a/test/SeqCli.EndToEnd/Mcp/McpToolTestCase.cs
+++ b/test/SeqCli.EndToEnd/Mcp/McpToolTestCase.cs
@@ -47,9 +47,14 @@ protected static T AssertStructuredResult<T>(CallToolResult callToolResult)
         AssertTextResult(callToolResult);
         Assert.NotNull(callToolResult.StructuredContent);
 
-        // Tools returning non-object values have them wrapped in a `result` property by the MCP
-        // SDK, because the protocol requires `structuredContent` to be an object.
-        var result = callToolResult.StructuredContent.Value.GetProperty("result");
+        // Before protocol version 2026-07-28, `structuredContent` had to be an object, so the MCP SDK
+        // wrapped non-object values (e.g. arrays) in a `result` property. From that version on, the SDK
+        // sends the value directly. Accept either shape.
+        var structuredContent = callToolResult.StructuredContent.Value;
+        var result = structuredContent.ValueKind == JsonValueKind.Object &&
+                     structuredContent.TryGetProperty("result", out var wrapped)
+            ? wrapped
+            : structuredContent;
         return result.Deserialize<T>(JsonSerializerOptions.Web)!;
     }
 
diff --git a/test/SeqCli.Tests/SeqCli.Tests.csproj b/test/SeqCli.Tests/SeqCli.Tests.csproj
index 4a7ca500..d6d36b69 100644
--- a/test/SeqCli.Tests/SeqCli.Tests.csproj
+++ b/test/SeqCli.Tests/SeqCli.Tests.csproj
@@ -4,9 +4,9 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.ML.Tokenizers.Data.O200kBase" Version="2.0.0" />
     <!-- This is a transitive dependency of Microsoft.ML.Tokenizers, version is bumped here to avoid a
       vulnerability in the 9.0.4 version referenced by that package. -->
-    <PackageReference Include="Microsoft.Bcl.Memory" Version="10.0.10" />
+    <PackageReference Include="Microsoft.Bcl.Memory" Version="10.0.12" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\SeqCli\SeqCli.csproj" />