diff --git a/hecl/extern/boo b/hecl/extern/boo
index 97d050556..690edd01e 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 97d05055628e1a3e6d1fe3693a57f29cda36554c
+Subproject commit 690edd01e68c7282ccd143955c7b3b103f9b2d8a