diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index afc53f00b..ae9701f96 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -93,8 +93,8 @@ jobs:
       - name: Download LLVM (MacOS Intel)
         if: matrix.os == 'macos-13'
         run: |
-          brew install llvm@20 lua@5.4
-          echo "/usr/local/opt/llvm@20/bin" >> $GITHUB_PATH
+          brew install llvm@18 lua@5.4
+          echo "/usr/local/opt/llvm@18/bin" >> $GITHUB_PATH
 
       - name: Download LLVM (MacOS ARM)
         if: matrix.os == 'macos-14'