diff --git a/hecl/extern/boo b/hecl/extern/boo
index 0445e5d28..403291c19 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 0445e5d282aef406859160eba52600c011628572
+Subproject commit 403291c191452139ca292f1d6c6067b893b8d8b0