diff --git a/lib/pkp b/lib/pkp
index d9eae6898c..ee523427f2 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit d9eae6898c59439fa44dd123fda5e610dcc5f73d
+Subproject commit ee523427f2e8c66e566926340cd9a7fd37a54532