diff --git a/lib/pkp b/lib/pkp
index 80be9c22659..5c444cc47e9 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 80be9c22659c47581d1f802e5c92be09d3057bc9
+Subproject commit 5c444cc47e91e44c27e64e937a5637ee56af9a40