diff --git a/lib/pkp b/lib/pkp
index 635822ebd78..514ad58597d 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 635822ebd78a07261023a100eb7cb6264da22e38
+Subproject commit 514ad58597d06157a0e32f0a46b66196c39c903b