diff --git a/action.yml b/action.yml
index 3bf6f6f..eb8b34e 100644
--- a/action.yml
+++ b/action.yml
@@ -1,5 +1,8 @@
 name: 'Cache NuGet Packages'
 description: '快取 NUGET 套件'
+inputs:
+  cache-arch:
+    description: '指定快取 NUGET 套件的架構，避免還原失敗'
 outputs:
   cache-hit:
     description: '表示是否命中快取'
@@ -12,6 +15,6 @@ runs:
       uses: actions/cache@v4
       with:
         path: ~/.nuget/packages
-        key: ${{ runner.os }}-${{ runner.arch }}-nuget-${{ hashFiles('NuGet.Config', '**/*.sln', '**/*.csproj', '**/global.json', '**/packages.lock.json', '**/Directory.Build.props', '**/Directory.Build.targets') }}
+        key: ${{ inputs.cache-arch || runner.os }}-nuget-${{ hashFiles('NuGet.Config', '**/*.sln', '**/*.csproj', '**/global.json', '**/packages.lock.json', '**/Directory.Build.props', '**/Directory.Build.targets') }}
         restore-keys: |
-          ${{ runner.os }}-${{ runner.arch }}-nuget-
+          ${{ inputs.cache-arch || runner.os }}-nuget-