diff --git a/lib/pkp b/lib/pkp
index 9dbfc07e1ee..99528195321 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 9dbfc07e1ee7e4465594d998d1dfd2ce9fcde3b1
+Subproject commit 9952819532185b33284e14f5070f4356b546bc8e