diff --git a/ipc b/ipc
index 1e4592f7cc65665bad53095f2855961905627916..a21f33b71924d81cbb39efb9f7fbe0168914a268 160000
--- a/ipc
+++ b/ipc
@@ -1 +1 @@
-Subproject commit 1e4592f7cc65665bad53095f2855961905627916
+Subproject commit a21f33b71924d81cbb39efb9f7fbe0168914a268