diff --git a/lib/pkp b/lib/pkp
index d0cd5cc32f9..ac2107cb0da 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit d0cd5cc32f94906c5bcac0a59e7ea2b6a03889d9
+Subproject commit ac2107cb0dafc66dc1fbab82839010bdfe39bb94