diff --git a/lib/pkp b/lib/pkp
index 55af2f4b334..2c86d97367f 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 55af2f4b334e684b0e315dbfb135cbdc396c8094
+Subproject commit 2c86d97367fd7a3b2fbcf1a9e45846dab505d631