diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c965d29..23b2d67 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'macos-11', 'windows-2022']
-        llvm: ['14.0.6']
+        llvm: ['13.0.1']
     steps:
       - uses: actions/checkout@v1
       - run: ./main.sh