diff --git a/hecl/extern/boo b/hecl/extern/boo
index 2bd9f8a55..57cb96c1a 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 2bd9f8a553a0370b664ee98cc35ad817a8dc91d5
+Subproject commit 57cb96c1a7e6c6d589be2e9e2a697110b249c91a