diff --git a/lib/pkp b/lib/pkp
index 2ebd23fb144..8b6ee5d9577 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 2ebd23fb1444eafb292bc7c9f1303261240232ca
+Subproject commit 8b6ee5d9577c3568db6ca86a15589fd18a64d060