diff --git a/hecl/extern/boo b/hecl/extern/boo
index 23a0c4d1d..d6b54a371 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 23a0c4d1dac000f55d5e5d0171ad8b05e4b52460
+Subproject commit d6b54a3718ce29b0c7f195a1ecfa63e4ec71f2c9