diff --git a/hecl/extern/libBoo b/hecl/extern/libBoo
index 74e2f47bc..afb81ab81 160000
--- a/hecl/extern/libBoo
+++ b/hecl/extern/libBoo
@@ -1 +1 @@
-Subproject commit 74e2f47bcf698801c80cbaf474cf253a76681d8f
+Subproject commit afb81ab81d9ff09998642dab6b1b67735af18391