diff --git a/.github/workflows/pack.yml b/.github/workflows/pack.yml
index 42756d3..4f128fb 100644
--- a/.github/workflows/pack.yml
+++ b/.github/workflows/pack.yml
@@ -6,6 +6,7 @@ on:
 
 env:
   dotnet: 6.0.201
+  version: 1.9.1
 
 jobs:
   pack:
@@ -22,9 +23,9 @@ jobs:
       - name: create file
         run: dotnet pack ToolBox/ToolBox.csproj /p:NuspecFile=${{ github.workspace }}/ToolBox/ToolBox.nuspec -o ${{ github.workspace }}/Package/ -c release
       - name: publish nuget on microsoft
-        run: dotnet nuget push "${{ github.workspace }}/Package/dein.ToolBox.${{ github.event.release.tag_name:1 }}.nupkg" -k ${{ secrets.NUGET_TOKEN }} -s "nuget" --skip-duplicate --no-symbols true
+        run: dotnet nuget push "${{ github.workspace }}/Package/dein.ToolBox.${{ env.version }}.nupkg" -k ${{ secrets.NUGET_TOKEN }} -s "nuget" --skip-duplicate --no-symbols true
       - name: publish nuget on github
-        run: dotnet nuget push "${{ github.workspace }}/Package/dein.ToolBox.${{ github.event.release.tag_name:1 }}.nupkg" -s "github" --skip-duplicate --no-symbols true
+        run: dotnet nuget push "${{ github.workspace }}/Package/dein.ToolBox.${{ env.version }}.nupkg" -s "github" --skip-duplicate --no-symbols true
   
   tweet:
     needs: pack