diff --git a/cibw_before_all.sh b/cibw_before_all.sh
index 2ba31dd..bd71c57 100644
--- a/cibw_before_all.sh
+++ b/cibw_before_all.sh
@@ -20,8 +20,9 @@ if command -v apt; then
 elif command -v apk; then
     apk update && apk add clang-dev
 elif command -v yum; then
-    yum -y install centos-release-scl llvm-toolset-7.0 llvm-toolset-7.0-llvm-devel
-    source scl_source enable llvm-toolset-7.0 || true
+    # yum -y install centos-release-scl llvm-toolset-7.0 llvm-toolset-7.0-llvm-devel
+    yum -y install llvm-toolset-7.0 llvm-toolset-7.0-llvm-devel
+    # source scl_source enable llvm-toolset-7.0 || true
 fi
 
 pushd rizin