diff --git a/lib/pkp b/lib/pkp
index 24589dfdc2f..2b5ffe209ef 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 24589dfdc2f008fa6730d8534ed6fdd442e298b7
+Subproject commit 2b5ffe209ef52e4c5cb80e6027584976cfc0af28