diff --git a/lib/pkp b/lib/pkp
index 0e951de96c1..635822ebd78 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 0e951de96c1d6f8445e35bdbb333b9563f3efe60
+Subproject commit 635822ebd78a07261023a100eb7cb6264da22e38