diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index d97dc45..acc8887 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-6883042528d0338b776bb2316e58999650e94892
+997a719d5a70100fcbbec1e51ce44cd66041bddc