diff --git a/lib/pkp b/lib/pkp
index 55af2f4b33..603f67fd5b 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 55af2f4b334e684b0e315dbfb135cbdc396c8094
+Subproject commit 603f67fd5b0e64c5081d14a10a8ff3b529fa7c45