diff --git a/lib/pkp b/lib/pkp
index 7d59a9ec90..66004b5985 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 7d59a9ec90a1b2da73fe75c301e861904de9a675
+Subproject commit 66004b5985660eb2f4c450611211926ad17f514e