diff --git a/lib/pkp b/lib/pkp
index 1a5a8b1d7e5..1979d894b5d 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 1a5a8b1d7e52ad079e4a669d4a6f3795cab9e61f
+Subproject commit 1979d894b5d6697088afca6ab71db54971211133