diff --git a/lib/pkp b/lib/pkp
index 5e93afcdcf9..88324c28ec6 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 5e93afcdcf90a52885d9d4d3611930ca79f24126
+Subproject commit 88324c28ec60ce26a615a6f5a9c7f12203aa2efc