diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 65e2d90..e919902 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -6,6 +6,10 @@ on:
   push:
     branches:
     - main
+  # Trigger for changes in the whatwg/sg repo.
+  repository_dispatch:
+    types:
+    - sg_repo_updated
 jobs:
   test:
     name: Test