diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 65fea89e2..53f7fecfd 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ on:
 
 env:
   LLVM_RELEASE_VERSION_WINDOWS: 18
-  LLVM_RELEASE_VERSION_MAC: 18
+  LLVM_RELEASE_VERSION_MAC: 17
   LLVM_RELEASE_VERSION_LINUX: 17
   LLVM_RELEASE_VERSION_UBUNTU20: 17
   LLVM_DEV_VERSION: 20