diff --git a/lib/pkp b/lib/pkp
index c76f5d47bf..510a90e0fd 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit c76f5d47bf3c9e254989a3a126050e1eb04e3bd6
+Subproject commit 510a90e0fdbfc5594b57612e5e4199f16562a105