diff --git a/tools/clang/scripts/update.py b/tools/clang/scripts/update.py
index ec936df..8647f63 100755
--- a/tools/clang/scripts/update.py
+++ b/tools/clang/scripts/update.py
@@ -38,7 +38,7 @@
 # https://chromium.googlesource.com/chromium/src/+/master/docs/updating_clang.md
 # Reverting problematic clang rolls is safe, though.
 # This is the output of `git describe` and is usable as a commit-ish.
-CLANG_REVISION = 'llvmorg-12-init-12923-g6ee22ca6'
+CLANG_REVISION = 'llvmorg-12-init-15676-g5c951623'
 CLANG_SUB_REVISION = 1
 
 PACKAGE_VERSION = '%s-%s' % (CLANG_REVISION, CLANG_SUB_REVISION)