diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9dad775..b901236 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -36,6 +36,9 @@ publish:
         exit 1
       fi
 
+    # Compile TypeScript to JavaScript in dist/
+    - npm run build
+
     # Compare the version in package.json to all published versions.
     # If the package.json version has not yet been published, run `npm publish`.
     # If $SIGSTORE_ID_TOKEN is set this template will generate a provenance