diff --git a/WORKSPACE b/WORKSPACE
index 93db65a..156b7e4 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -15,9 +15,9 @@
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-LLVM_COMMIT = "99a6d003edbe97fcb94854547276ffad3382ec1d"
+LLVM_COMMIT = "1a4990a4f71adf1ea0b8f7e0ae2ddd8a85f9c393"
 
-LLVM_SHA256 = "763f933a1db16a857b8fd5a4a70bb8e9a4ffb83be5e9c2cd86a62b4ed2cb652a"
+LLVM_SHA256 = "d5588c2abcad3b36906e050b90f995e8e4b70fecdbd35d81a1174a7feca88a2a"
 
 LLVM_BAZEL_TAG = "llvm-project-{commit}".format(commit = LLVM_COMMIT)
 
diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index fd2dfdb..2844db6 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-99a6d003edbe97fcb94854547276ffad3382ec1d
+1a4990a4f71adf1ea0b8f7e0ae2ddd8a85f9c393