diff --git a/lib/pkp b/lib/pkp
index e14cfc5bd19..785c17528c4 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit e14cfc5bd19b1c5b82697c897ceaf74d67ac8cc9
+Subproject commit 785c17528c4a31aa614f16f36ee956d520908b21