diff --git a/WORKSPACE b/WORKSPACE
index 778b266..453f10c 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -15,9 +15,9 @@
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-LLVM_COMMIT = "ad12590fdd1459ffb8db185ea1b45748c20b538e"
+LLVM_COMMIT = "1f8963c80195aa86d02e81acedcf1ff3da127842"
 
-LLVM_SHA256 = "9815229b6d758a8dd151c16437c4212e3bc498bb3e52b76686d31d7079335a2a"
+LLVM_SHA256 = "7151b91b743689b90222a0637c952625eb479cc4204e5d50b625d27e49ef30ed"
 
 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 bbe7a92..a5e3e9c 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-ad12590fdd1459ffb8db185ea1b45748c20b538e
+1f8963c80195aa86d02e81acedcf1ff3da127842