diff --git a/lib/pkp b/lib/pkp
index 025a6fc71a..a9bac49a4b 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 025a6fc71ade25af6dfd75ba27a0be82e22db6c9
+Subproject commit a9bac49a4bbe8396fdb5b8731230f53043218690