diff --git a/hecl/extern/boo b/hecl/extern/boo
index 9078a1664..d1eb3a6b3 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 9078a16642697f7319dbc783650587b69a05f9ae
+Subproject commit d1eb3a6b3b7fe42dc35af420b267b61a1c951a22