diff --git a/lib/pkp b/lib/pkp
index 2def21b8163..4024111d8f6 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 2def21b81637a03d587f50ec82c51dbbb4ba5282
+Subproject commit 4024111d8f6cf6983c789fce87b755dad28d78d3