diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index 5dcca3f..c17dc69 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-acb66b9111ba793509b5468a58107108317b7cf5
+633e3dacf27ea4950b7067803502490597ba96e0