diff --git a/lib/pkp b/lib/pkp
index 63b00c7cc87..8ce7f2c4534 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 63b00c7cc87f3788efba7e5386b9c6929e1a0807
+Subproject commit 8ce7f2c4534d39610b9d0a8733acc57cee382c2f