diff --git a/hecl/extern/boo b/hecl/extern/boo
index c77fe9431..dbf7b9bcf 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit c77fe943133c4d797835490920c3444d8edbf795
+Subproject commit dbf7b9bcf8211047b63593fe8110561b21fe69b3