diff --git a/lib/pkp b/lib/pkp
index 7d41d41a92..b6af73835c 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 7d41d41a9276491ba437dcdfbaa59dd9cf164103
+Subproject commit b6af73835c164dc2dfac4b3f7493da9831b1c28f