diff --git a/DEPS b/DEPS
index 48c687470e..e0ad1950d6 100644
--- a/DEPS
+++ b/DEPS
@@ -12,7 +12,7 @@ vars = {
   'build_with_chromium': False,
 
   'build_url': 'https://chromium.googlesource.com/chromium/src/build.git',
-  'build_revision': 'e5ed34305088a0bdef773f57f4f2e519e8d90261',
+  'build_revision': 'a21fc6065131d0442e8a54c3ca2638e393b69438',
 
   'buildtools_url': 'https://chromium.googlesource.com/chromium/src/buildtools.git',
   'buildtools_revision': '6f834e2039daedfc68a2749c217922b26d5e8497',
diff --git a/build b/build
index e5ed343050..a21fc60651 160000
--- a/build
+++ b/build
@@ -1 +1 @@
-Subproject commit e5ed34305088a0bdef773f57f4f2e519e8d90261
+Subproject commit a21fc6065131d0442e8a54c3ca2638e393b69438