diff --git a/lib/pkp b/lib/pkp
index 6270fa6c743..1e227f96eba 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 6270fa6c74326106f64804af3f1afda02b499c46
+Subproject commit 1e227f96eba18c43ec18a49a4b220b4f12c63d8d