diff --git a/lib/bc b/lib/bc
index 493bf0e..2b62090 160000
--- a/lib/bc
+++ b/lib/bc
@@ -1 +1 @@
-Subproject commit 493bf0e389397d8ea238fbbc613b76cc8b56cc05
+Subproject commit 2b620905ca9c4f094bfaf3e2e976acbb6ab0d098