diff --git a/lib/pkp b/lib/pkp
index 0140623fc69..2ad90cdc8b8 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 0140623fc6960f0d8572837f1b6f7d71c0d52372
+Subproject commit 2ad90cdc8b868a8e498f41e6d2c7668e3a755023