diff --git a/lib/pkp b/lib/pkp
index 0140623fc69..f1666488e45 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 0140623fc6960f0d8572837f1b6f7d71c0d52372
+Subproject commit f1666488e45f6656e7ba722b256480ee5d9e564d