diff --git a/Makefile b/Makefile
index 6f9d1867af..8a55b1876e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 FLOW_COMMIT = 92bbb5e9dacb8185aa73ea343954d0434b42c40b
-TEST262_COMMIT = 64a1628d0481a4b6f66fe6e90a925e94506be8ac
+TEST262_COMMIT = 8d420cef415f3501cb24d674b8c032d1f09402a0
 TYPESCRIPT_COMMIT = bbd9ff51f5fa5208b223bbb75a94e5e8184e3ffd
 
 # Fix color output until TravisCI fixes https://github.com/travis-ci/travis-ci/issues/7967