diff --git a/hecl/extern/boo b/hecl/extern/boo
index eebb73e11..771dbaf1a 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit eebb73e1124d827f60330d96807e7fd21c6756ff
+Subproject commit 771dbaf1aa6e7745134907cebce6f989b6b8318a