diff --git a/hecl/extern/boo b/hecl/extern/boo
index 52c0cca59..65a63bcab 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 52c0cca59373d165cd4410d6dc92c87d0528b1ef
+Subproject commit 65a63bcab545ddb47853358707c4171d001357d9