diff --git a/eng/ci/official-build.yml b/eng/ci/official-build.yml
index 6b487180a..15f1c1518 100644
--- a/eng/ci/official-build.yml
+++ b/eng/ci/official-build.yml
@@ -13,7 +13,7 @@ trigger:
 
 schedules:
 # Ensure we build nightly to catch any new CVEs and report SDL often.
-- cron: "0 0 * * *"
+- cron: "0 3 * * *"
   displayName: Nightly Build
   branches:
     include:
@@ -52,6 +52,9 @@ extends:
       name: 1es-pool-azfunc
       image: 1es-windows-2022
       os: windows
+      ${{ if eq( variables['Build.Reason'], 'Schedule' ) }}:
+        demands:
+        - Priority -equals Low
 
     sdl:
       codeql:
diff --git a/eng/ci/public-build.yml b/eng/ci/public-build.yml
index aafc5a6b3..61508468f 100644
--- a/eng/ci/public-build.yml
+++ b/eng/ci/public-build.yml
@@ -7,7 +7,7 @@ trigger:
 
 schedules:
 # Ensure we build nightly to catch any new CVEs and report SDL often.
-- cron: "0 0 * * *"
+- cron: "0 3 * * *"
   displayName: Nightly Build
   branches:
     include:
@@ -38,6 +38,9 @@ extends:
       name: 1es-pool-azfunc-public
       image: 1es-windows-2022
       os: windows
+      ${{ if eq( variables['Build.Reason'], 'Schedule' ) }}:
+        demands:
+        - Priority -equals Low
 
     sdl:
       codeql: