diff --git a/harfbuzz b/harfbuzz
index 7b27c8e..3ef8709 160000
--- a/harfbuzz
+++ b/harfbuzz
@@ -1 +1 @@
-Subproject commit 7b27c8edd46c674e01dd226fa9e1aa7549f5c436
+Subproject commit 3ef8709829a5884517ad91a97b32b9435b2f20d1