diff --git a/hecl/extern/boo b/hecl/extern/boo
index fd503b4a1..091371458 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit fd503b4a11ba83dea2794e83ed0c0ac677603b8c
+Subproject commit 091371458d4adb5d78eddacfaa9247e6519ba637