diff --git a/lib/pkp b/lib/pkp
index 8b64e51eb2bc83d8fc6533bafbe9ec16d81b9477..6b3ba1e5dcd957b27cfb222794c1fd6b24421022 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 8b64e51eb2bc83d8fc6533bafbe9ec16d81b9477
+Subproject commit 6b3ba1e5dcd957b27cfb222794c1fd6b24421022