diff --git a/extmod/ulab b/extmod/ulab
index e2e91111e4..9b8cd47640 160000
--- a/extmod/ulab
+++ b/extmod/ulab
@@ -1 +1 @@
-Subproject commit e2e91111e41b1bb840f64be69107f7fd3aa6e737
+Subproject commit 9b8cd47640304929aa4255560d754b3058ddaa95