diff --git a/lib/pkp b/lib/pkp
index 95e56323653..1f78b8f3530 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 95e56323653fdc6a948e73940f7d537384bf5e82
+Subproject commit 1f78b8f3530869be44ceb4aec77239e375548b18