diff --git a/hecl/extern/boo b/hecl/extern/boo
index f00d77415..d5ec7bcc1 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit f00d77415acc469d2c2eda9a473749a1f6423a7b
+Subproject commit d5ec7bcc1ed5dbb5d25b1949cb4a94390277ef6e