diff --git a/hecl/extern/boo b/hecl/extern/boo
index dc7da6aa2..5afdb62a3 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit dc7da6aa213f93e28944e5c815a9892dbff4986c
+Subproject commit 5afdb62a392eaf8ae41e09b9dd37b7922abd03b5