diff --git a/hecl/extern/boo b/hecl/extern/boo
index 8ecb3f4f6..ed618fa8c 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 8ecb3f4f6b716233495d9466cdc04b8efeda79dd
+Subproject commit ed618fa8cbc32eaef6c0bc8dee0df106b8c3c898