diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index 68ba150..f98a4fe 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-1d01fc100bb5bef5f5eaf92520b2e52f64ee1d6e
+bc3d4d9ed783a3051125075f1a58ad619d8ea454