diff --git a/.github/workflows/publish_winuiex_nuget.yml b/.github/workflows/publish_winuiex_nuget.yml
index 553b9e6..026d838 100644
--- a/.github/workflows/publish_winuiex_nuget.yml
+++ b/.github/workflows/publish_winuiex_nuget.yml
@@ -27,7 +27,9 @@ jobs:
         msbuild /restore /t:Build,Pack src/WinUIEx/WinUIEx.csproj /p:Configuration=Release /p:CertificatePath=${{ steps.cert_file.outputs.filePath }} /p:CertificatePassword=${{ secrets.PFX_PASSWORD }}
       
     - name: Sign NuGet Package
-      run: nuget sign artifacts\NuGet\Release\*.nupkg -CertificatePath ${{ steps.cert_file.outputs.filePath }} -CertificatePassword ${{ secrets.PFX_PASSWORD }}  -Timestamper http://timestamp.digicert.com -NonInteractive
+      run: |
+        nuget sign artifacts\NuGet\Release\*.nupkg -CertificatePath ${{ steps.cert_file.outputs.filePath }} -CertificatePassword ${{ secrets.PFX_PASSWORD }}  -Timestamper http://timestamp.digicert.com -NonInteractive
+        nuget sign artifacts\NuGet\Release\*.snupkg -CertificatePath ${{ steps.cert_file.outputs.filePath }} -CertificatePassword ${{ secrets.PFX_PASSWORD }}  -Timestamper http://timestamp.digicert.com -NonInteractive
 
     - name: Upload artifacts
       uses: actions/upload-artifact@v1