diff --git a/hecl/extern/libBoo b/hecl/extern/libBoo
index 30fd4c070..e21074ce5 160000
--- a/hecl/extern/libBoo
+++ b/hecl/extern/libBoo
@@ -1 +1 @@
-Subproject commit 30fd4c070931b0ffda9b39c80bd7b08a0412d733
+Subproject commit e21074ce57197fceadc42f0b12e1cce98112a1d2