diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index 117e9c2..a04ac74 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-3f7985e6ec21c21eb6d6cdd05ab206d0bcf2a770
+c1dd5df4255cd870e96a59e73163b22d85fbaba3