diff --git a/CLAUDE.md b/CLAUDE.md
index 9c0714c9..0b29cdb8 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -8,7 +8,7 @@ FactorioTools is a Factorio oil-field (outpost) blueprint planner. Given a bluep
 
 ## Prerequisites
 
-- **.NET SDK 10.0.302** (pinned in `global.json`, `rollForward: latestMajor`). This is a floor, not an exact pin - `latestMajor` means any newer 10.x SDK works, but an *older* one now fails, so raising this number raises the bar for every contributor. Keep it in sync with `global.json`; CI installs exactly this version via `setup-dotnet`'s `global-json-file`.
+- **.NET SDK 10.0.400** (pinned in `global.json`, `rollForward: latestMajor`). This is a floor, not an exact pin - `latestMajor` means any newer 10.x SDK works, but an *older* one now fails, so raising this number raises the bar for every contributor. Keep it in sync with `global.json`; CI installs exactly this version via `setup-dotnet`'s `global-json-file`.
 - **Git submodules are required** (`FluteSharp`, `delaunator-sharp`, `CSharp.lua`). Clone/update with `git submodule update --init --recursive`. CI checks out with `submodules: recursive`.
 - Node 24 (Active LTS) for the Vue front-end.
 - The browser-WASM project needs `dotnet workload restore`.
diff --git a/global.json b/global.json
index 72c5dfc0..ee6d3f7e 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "10.0.302",
+    "version": "10.0.400",
     "rollForward": "latestMajor",
     "allowPrerelease": false
   }
diff --git a/src/BlazorWebApp/BlazorWebApp.csproj b/src/BlazorWebApp/BlazorWebApp.csproj
index c6bf56ba..727b0110 100644
--- a/src/BlazorWebApp/BlazorWebApp.csproj
+++ b/src/BlazorWebApp/BlazorWebApp.csproj
@@ -17,8 +17,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.10" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.10" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.11" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.11" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/FactorioTools.Cli/FactorioTools.Cli.csproj b/src/FactorioTools.Cli/FactorioTools.Cli.csproj
index a73ad473..5c45a827 100644
--- a/src/FactorioTools.Cli/FactorioTools.Cli.csproj
+++ b/src/FactorioTools.Cli/FactorioTools.Cli.csproj
@@ -13,7 +13,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.CommandLine" Version="2.0.10" />
+    <PackageReference Include="System.CommandLine" Version="2.0.11" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/WebApp/WebApp.csproj b/src/WebApp/WebApp.csproj
index 97c3557b..1fd0b050 100644
--- a/src/WebApp/WebApp.csproj
+++ b/src/WebApp/WebApp.csproj
@@ -41,7 +41,7 @@
       front-end, so the migration's cost/risk is not justified right now. Revisit only if
       the API is hosted again or the OpenAPI contract needs to change.
     -->
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.29" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.30" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.9.0" />
   </ItemGroup>
 
diff --git a/src/vue/package-lock.json b/src/vue/package-lock.json
index 567e5d0f..41556f93 100644
--- a/src/vue/package-lock.json
+++ b/src/vue/package-lock.json
@@ -4332,9 +4332,9 @@
       }
     },
     "node_modules/pinia": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/pinia/-/pinia-4.0.2.tgz",
-      "integrity": "sha512-yKVVA7bSj5oRZFp/Ab9wLlmyb5gPUYEiIm4ryiWTe/xe7PtkRdMVOp1X1ggvq0c6Uj7Q0Du1HnV2mtAwM0Ks1g==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/pinia/-/pinia-4.0.3.tgz",
+      "integrity": "sha512-XMQqpvjgG7LMqVhhFUzKLT4KEbsYbfZZ0CZU9PgdFm1O2VKBmIkykL8+SfNhOaT7sR0wT6BEgKT0YNDYWgmVRA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/test/FactorioTools.Test/FactorioTools.Test.csproj b/test/FactorioTools.Test/FactorioTools.Test.csproj
index 02ac4258..37a8303c 100644
--- a/test/FactorioTools.Test/FactorioTools.Test.csproj
+++ b/test/FactorioTools.Test/FactorioTools.Test.csproj
@@ -27,7 +27,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <!--
       The Verify family must move together, and it is only free to move because this
       project is on xunit v3.