diff --git a/.github/workflows/build-debug.yaml b/.github/workflows/build-debug.yaml
index 93d934a..0422c13 100644
--- a/.github/workflows/build-debug.yaml
+++ b/.github/workflows/build-debug.yaml
@@ -19,7 +19,7 @@ jobs:
       - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - run: dotnet build -c Release
       - run: dotnet test -c Release
-      - run: dotnet pack -c Release --no-build -p:IncludeSymbols=true -p:SymbolPackageFormat=snupkg -o $GITHUB_WORKSPACE/artifacts
+      - run: dotnet pack -c Release --no-build -p:IncludeSymbols=true -o $GITHUB_WORKSPACE/artifacts
 
   build-unity:
     if: ${{ ((github.event_name == 'push' && github.repository_owner == 'Cysharp') || startsWith(github.event.pull_request.head.label, 'Cysharp:')) && github.triggering_actor != 'dependabot[bot]' }}
diff --git a/.github/workflows/build-release.yaml b/.github/workflows/build-release.yaml
index 37b9680..4a226e7 100644
--- a/.github/workflows/build-release.yaml
+++ b/.github/workflows/build-release.yaml
@@ -36,10 +36,10 @@ jobs:
         with:
           ref: ${{ needs.update-packagejson.outputs.sha }}
       - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
-      # build and pack
+      # build and pack nuget (.nupkg and .symbols.nupkg will be created)
       - run: dotnet build -c Release -p:Version=${{ inputs.tag }}
       - run: dotnet test -c Release --no-build
-      - run: dotnet pack ./src/UniTask.NetCore/UniTask.NetCore.csproj -c Release --no-build -p:Version=${{ inputs.tag }} -p:IncludeSymbols=true -p:SymbolPackageFormat=snupkg -o ./publish
+      - run: dotnet pack ./src/UniTask.NetCore/UniTask.NetCore.csproj -c Release --no-build -p:Version=${{ inputs.tag }} -p:IncludeSymbols=true -o ./publish
       # Store artifacts.
       - uses: Cysharp/Actions/.github/actions/upload-artifact@main
         with:
@@ -56,10 +56,6 @@ jobs:
         if: ${{ !inputs.dry-run }}
         env:
           NUGET_KEY: ${{ steps.login.outputs.NUGET_API_KEY }}
-      - run: dotnet nuget push "./publish/*.snupkg" --skip-duplicate -s https://api.nuget.org/v3/index.json -k "${NUGET_KEY}"
-        if: ${{ !inputs.dry-run }}
-        env:
-          NUGET_KEY: ${{ steps.login.outputs.NUGET_API_KEY }}
 
   build-unity:
     needs: [update-packagejson]