diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index 64ad99a..c4e9ea4 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-c799f873cb9feaea265aa3df8f3372949f8263d0
+7841e21c98495ba5e33e0d2507d985bd5b938445