diff --git a/hecl/extern/boo b/hecl/extern/boo
index 8ff2b9c40..77507459c 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 8ff2b9c404d9dd3ce4a69ec25f7b4c7c9a80813a
+Subproject commit 77507459cc38adafb5bc5286f9b81804f9e82bcc