diff --git a/hecl/extern/boo b/hecl/extern/boo
index bb6274e63..500775f3d 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit bb6274e63815dc9b2b630a08abc2240b1990bf59
+Subproject commit 500775f3db012f7516ff081cb0f18d4a266299f1