diff --git a/hecl/extern/boo b/hecl/extern/boo
index df61d6678..6f04bea1f 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit df61d6678b29a673c9893cebedbaca432c6e4fb3
+Subproject commit 6f04bea1f0f437be351dd5a8b4a000ef98a0f880