diff --git a/lib/pkp b/lib/pkp
index 75b9b6dbe26..7599cd3bbd6 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 75b9b6dbe26271ed511c634dce12443c2c2f0f50
+Subproject commit 7599cd3bbd62b8c4de1385b560e08848346521ee