diff --git a/lib/pkp b/lib/pkp
index c4cf339161..1b418bf635 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit c4cf339161765e79c314884423b6ae5ff6e80a9d
+Subproject commit 1b418bf6359bc10a4165c8d6f2474c920203341d