diff --git a/lib/pkp b/lib/pkp
index 075215376c4..9984fe44707 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 075215376c4e04d239eeb0aedb4a39bf9e75c90d
+Subproject commit 9984fe447071d461189e58904f47308e7b2920c4