diff --git a/hecl/extern/boo b/hecl/extern/boo
index 89b0fa5cd..97d050556 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 89b0fa5cd66765dc616ea4c9ca2035e58ca9e8d5
+Subproject commit 97d05055628e1a3e6d1fe3693a57f29cda36554c