diff --git a/lib/pkp b/lib/pkp
index 6d7d558e035..2a5b9f37a09 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 6d7d558e035a9cb605ebb6dec1b555f9144e0679
+Subproject commit 2a5b9f37a094a1da596dff2d68525fb1d1885aa7