diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index e596932dd..6faa34b20 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -1,9 +1,9 @@
 name: Nightly
 
-on: [pull_request]
-#   schedule:
-#     # every night at midnight
-#     - cron:  '0 0 * * *'
+on:
+  schedule:
+    # every night at midnight
+    - cron:  '0 0 * * *'
 
 jobs: