diff --git a/lib/pkp b/lib/pkp
index fd33397a407..47e7a17e192 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit fd33397a407ec72892a86e6f1b212eff09cb8326
+Subproject commit 47e7a17e1922fac5a6526353e13bfe352a6d5906