diff --git a/lib/pkp b/lib/pkp
index 77186a1bc1..22787700d5 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 77186a1bc1bcca0cdc26348c2278e798a297460b
+Subproject commit 22787700d59761ecee9c76355a06e15680a533f8