diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index acc231b..a98996b 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-87bf0b0ee986078a2c9e9bca02cf7a4c42012925
+921c1b7df37d6f5353ed5fdffa117dcda0c941ba