diff --git a/hecl/extern/boo b/hecl/extern/boo
index 0c99623aa..f4dc3626e 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 0c99623aa9dcd8e329376d1961093bc0f62d9eaa
+Subproject commit f4dc3626e59fa48d95c02674ab786a8463c75fa1