diff --git a/lib/pkp b/lib/pkp
index e19cbb0a79..5b22cb0d12 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit e19cbb0a7905c082315168d89dc122afc01c46ee
+Subproject commit 5b22cb0d123306dfc8200351e916d256dcd9e626