diff --git a/lib/pkp b/lib/pkp
index 5c6fdc5d46..5a1ed1ffae 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 5c6fdc5d462cbf6e45a5961d20132adc4045f5c7
+Subproject commit 5a1ed1ffaef980f63ebdbc2c74711c17da559f1d