diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index fbee014..7a8373c 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-6627a3c2873fdf7ccba1a1573371079be48b36e8
+18603319321a6c1b158800bcc60035ee01549516