diff --git a/lib/pkp b/lib/pkp
index cd5633cc4e4..090f1f21513 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit cd5633cc4e40ebc70c2457de4078cdde67eb05a9
+Subproject commit 090f1f21513e4d381eca2b56aeb7206c2bc09a59