diff --git a/.github/workflows/buildAndTestCMake.yml b/.github/workflows/buildAndTestCMake.yml
index 956ef0b1486..3688cf90678 100644
--- a/.github/workflows/buildAndTestCMake.yml
+++ b/.github/workflows/buildAndTestCMake.yml
@@ -20,8 +20,8 @@ on:
   push:
     branches: [ main ]
   schedule:
-    # Run once a day
-    - cron:  '0 12 * * *'
+    # Run once every 6hr building against llvm-project@HEAD
+    - cron:  '0 */6 * * *'
   workflow_dispatch:
 
 # Ensure that only a single job or workflow using the same
@@ -34,6 +34,7 @@ concurrency:
 
 jobs:
   cmake-build:
+    name: "cmake-build ${{ github.event_name == 'schedule' && '(llvm-project@HEAD)' || ''}}"
     env:
       LLVM_PROJECT_DIR: "llvm-project"
       LLVM_BUILD_DIR: "llvm-build"
@@ -51,7 +52,12 @@ jobs:
       id: llvm-version
       shell: bash
       run: |
-        echo "version=$(cat ${{ github.workspace }}/build_tools/llvm_version.txt)" >> $GITHUB_OUTPUT
+        USE_LLVM_HEAD=${{ github.event_name == 'schedule' }}
+        if [[ $USE_LLVM_HEAD = true ]]; then
+          echo "version=main" >> $GITHUB_OUTPUT
+        else
+          echo "version=$(cat ${{ github.workspace }}/build_tools/llvm_version.txt)" >> $GITHUB_OUTPUT
+        fi;
 
     - name: Setup workspace
       uses: ./.github/actions/setup-build