diff --git a/lib/pkp b/lib/pkp
index ac9468b8d87..9190b6b3a0b 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit ac9468b8d876620dfb055d927875065bead5d102
+Subproject commit 9190b6b3a0ba42ad458ab48836c0e556dd014138