diff --git a/WORKSPACE b/WORKSPACE
index 9668830..15d22f3 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -15,9 +15,9 @@
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-LLVM_COMMIT = "594e0ba969670a268e50e9f620cc04293ab9065b"
+LLVM_COMMIT = "20d5c42e0ef5d252b434bcb610b04f1cb79fe771"
 
-LLVM_SHA256 = "48eebc22d878da6f979c7dd0243eaba946e9c9901d5cb168f70fd26912abb54f"
+LLVM_SHA256 = "d5ec1b6318510c8bc349c41edf985d087785fc6ae63274d1319a344f30eabfc6"
 
 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 853bc3b..a8215c4 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-594e0ba969670a268e50e9f620cc04293ab9065b
+20d5c42e0ef5d252b434bcb610b04f1cb79fe771