diff --git a/lib/bc b/lib/bc
index 2b62090..3acd264 160000
--- a/lib/bc
+++ b/lib/bc
@@ -1 +1 @@
-Subproject commit 2b620905ca9c4f094bfaf3e2e976acbb6ab0d098
+Subproject commit 3acd26453d4a29d6a407adbbb0125d117714fd36
diff --git a/lib/mem b/lib/mem
index 8a8fa79..5153788 160000
--- a/lib/mem
+++ b/lib/mem
@@ -1 +1 @@
-Subproject commit 8a8fa7918cebc8fdf23061d4501e49079af9a312
+Subproject commit 515378839ec59155ef2b8df141f588f3f12f89d2
diff --git a/lib/system b/lib/system
index f886ab5..8eba4c3 160000
--- a/lib/system
+++ b/lib/system
@@ -1 +1 @@
-Subproject commit f886ab5bc35b2e0d968baa8dec3faaccf385fbc3
+Subproject commit 8eba4c3ff0efb1a0fd1268a22da362b990b4967f