diff --git a/hecl/extern/boo b/hecl/extern/boo
index 19014e0ba..fdf37c95e 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 19014e0ba70d92c3257cf7a69f7018123d6028e6
+Subproject commit fdf37c95e0aba6f4a62fbb8ebeba68c585b3f6e9