diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index 934e606..1838b8a 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-b05629230e9c7e90a2e70a761f7800afb1a8eefd
+a9cbe5cf30e386a4f44981f5bf9e1862ad36574d