diff --git a/lib/pkp b/lib/pkp
index 0dd0ff4ac20..fd33397a407 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 0dd0ff4ac20b70359039dddae6f551aae888e6e0
+Subproject commit fd33397a407ec72892a86e6f1b212eff09cb8326