diff --git a/lib/pkp b/lib/pkp
index 2def21b8163..494023aef80 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 2def21b81637a03d587f50ec82c51dbbb4ba5282
+Subproject commit 494023aef80274b66c8fd13382e031b7302b537a