diff --git a/.github/workflows/nightly_build.yml b/.github/workflows/nightly_build.yml
index 50daa86b9..9f0a39383 100644
--- a/.github/workflows/nightly_build.yml
+++ b/.github/workflows/nightly_build.yml
@@ -2,7 +2,7 @@ name: NightlyBuild
 
 on:
   schedule:
-    - cron:  '*/15 * * * *'
+    - cron:  '5 2 * * *'
 
 defaults:
   run: