diff --git a/hecl/extern/boo b/hecl/extern/boo
index e70da4b4a..c01b0b4c6 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit e70da4b4a5a8ab3987809c9720778cc34f9722dc
+Subproject commit c01b0b4c6a9b3865b2eb2f22c47c409cf8a8b4bb