diff --git a/lib/pkp b/lib/pkp
index 5a1ed1ffae..e6f110bcd5 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 5a1ed1ffaef980f63ebdbc2c74711c17da559f1d
+Subproject commit e6f110bcd5151b3f9fdc67cbbe86d7f9df667336