diff --git a/lib/pkp b/lib/pkp
index 65cc7ba259..5370731229 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 65cc7ba25967fe8446a223e0c2447649c720772b
+Subproject commit 53707312295f35cfee662659c4572f0570882ed4