diff --git a/lib/bc b/lib/bc
index 747cdf7..05c63db 160000
--- a/lib/bc
+++ b/lib/bc
@@ -1 +1 @@
-Subproject commit 747cdf796ff4a030cc26d352cf87c55e4981014e
+Subproject commit 05c63dbea7a7251bec31bbe4dc34b40d01ad4179