diff --git a/lib/pkp b/lib/pkp
index 8355f0c5b59..f19ff1158de 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 8355f0c5b59f9d511444ab7c46cfd0d0f5dc1deb
+Subproject commit f19ff1158de24e7e8ff800263e991bae60d11054