diff --git a/hecl/extern/boo b/hecl/extern/boo
index 62c2b1ffa..1259255f3 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 62c2b1ffac1f1c580a8b423861e531a393cfe6c7
+Subproject commit 1259255f34f3b5bf370fd8b1a87d52a3de87ec57