diff --git a/src/harfbuzz b/src/harfbuzz
index c4b56749b08..cd9478610c7 160000
--- a/src/harfbuzz
+++ b/src/harfbuzz
@@ -1 +1 @@
-Subproject commit c4b56749b084bb99879be1e64548ad2c23598a97
+Subproject commit cd9478610c792270490b479db1413d74113f587a