diff --git a/lib/pkp b/lib/pkp
index 22c03902e14..5df99544b79 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 22c03902e1404e8c0bf8766d25d069fa6d9151d5
+Subproject commit 5df99544b79ba1f4b97ceb270ed279ab06fb7883