diff --git a/hecl/extern/boo b/hecl/extern/boo
index 4fbc8746b..49afde2fb 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 4fbc8746b0680b4f720cce3651e1157e1e1724e7
+Subproject commit 49afde2fb96705e21856c6b382bf240c0c51fe9f