diff --git a/.github/nuget/TwilioCLISigningCertificate.pfx b/.github/nuget/TwilioCLISigningCertificate.pfx
new file mode 100644
index 000000000..4a74c07e2
Binary files /dev/null and b/.github/nuget/TwilioCLISigningCertificate.pfx differ
diff --git a/.github/workflows/test-and-deploy.yml b/.github/workflows/test-and-deploy.yml
index ec5760b07..142e15cc7 100644
--- a/.github/workflows/test-and-deploy.yml
+++ b/.github/workflows/test-and-deploy.yml
@@ -82,6 +82,7 @@ jobs:
       - name: Publish package to NuGet
         run: |
           make release
+          dotnet nuget sign **/*.nupkg --certificate-path .github/nuget/TwilioCLISigningCertificate.pfx --certificate-password ${{ secrets.CERTIFICATE_PASSWORD }}
           dotnet nuget push **/*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json
 
       - name: Submit metric to Datadog