diff --git a/lib/pkp b/lib/pkp
index 1a5a8b1d7e..47b0af5427 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 1a5a8b1d7e52ad079e4a669d4a6f3795cab9e61f
+Subproject commit 47b0af5427211d7e1743c207afc85549a4b7dba4