diff --git a/hecl/extern/boo b/hecl/extern/boo
index 88db4927c..93f6e11fa 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 88db4927c931615dac3efb08e4d872c1befe755a
+Subproject commit 93f6e11fa8070c8cc488e706f98734a7b54103aa