diff --git a/hecl/extern/boo b/hecl/extern/boo
index e1964f57a..1b3209f4b 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit e1964f57a936db15b6cf455857cfe5d292092a34
+Subproject commit 1b3209f4bfb988afa808b52c469bd9d0b66cc9ab