diff --git a/lib/pkp b/lib/pkp
index bf64b629ef..89412893c4 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit bf64b629ef06e515d4a1177142210d3cafc96681
+Subproject commit 89412893c4855bd367e8b086891eab1faef77976