diff --git a/lib/pkp b/lib/pkp
index 6fe2ad4130e..9394188139f 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 6fe2ad4130ec0e10a39aacfac07ba591894d22ba
+Subproject commit 9394188139fd365ebcf10ac9f2feece9e691c151