diff --git a/lib/pkp b/lib/pkp
index 177b71d7cae..304c66c3244 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 177b71d7cae76f1d7a11020c28b028aaa95d56ce
+Subproject commit 304c66c3244395654ef0128104454d51e1d949be