diff --git a/lib/pkp b/lib/pkp
index 6725503176..e31ad65176 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 6725503176f6b04ef0faf56e2dc7fe84d25b476f
+Subproject commit e31ad65176c79545f94a81dbb32a1a3beee18316