diff --git a/lib/pkp b/lib/pkp
index 5e93afcdcf..4811074c15 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 5e93afcdcf90a52885d9d4d3611930ca79f24126
+Subproject commit 4811074c155652fed4924c9cdb86edc8f1b60f95