diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d02742392..e579a7e4f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -127,6 +127,9 @@ jobs:
       
     - name: Package Extension
       run: npx vsce package -o rescript-vscode-${{ steps.vars.outputs.sha_short }}.vsix
+
+    - name: Test extension token
+      run: npx vsce verify-pat chenglou92 --pat ${{ secrets.MARKETPLACE_TOKEN }}
       
     - uses: actions/upload-artifact@v2
       with: