diff --git a/hecl/extern/boo b/hecl/extern/boo
index cc0620e8f..8333536a7 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit cc0620e8f7cb0084f8685b2b353e7f41ab7e310d
+Subproject commit 8333536a7cedc6fa5b49f6e01e102283a91a4b56