diff --git a/picoruby b/picoruby
index 65aaf5a..9c04239 160000
--- a/picoruby
+++ b/picoruby
@@ -1 +1 @@
-Subproject commit 65aaf5a90b2ca4ae17ae007dc84c0cea27b42e8d
+Subproject commit 9c042398b2bb431842f20f3e345dcd1c15b7a6ab