diff --git a/lib/pkp b/lib/pkp
index a93422e1367..280ec50dbc6 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit a93422e1367a8b712aaa381d5a0d60db6f8b3e11
+Subproject commit 280ec50dbc6d0ee9b4b4efb516515dda834b1b96