diff --git a/lib/pkp b/lib/pkp
index 1b4fee91f0..c9ee41f1c3 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 1b4fee91f0551147e610c3e25ecf8eb1876aa424
+Subproject commit c9ee41f1c3f220cd650674a42da604855ccd29f9