diff --git a/iris b/iris
index 23c5abe..31ff17c 160000
--- a/iris
+++ b/iris
@@ -1 +1 @@
-Subproject commit 23c5abe5a9b91d81b70c442896d8b7ba462b3b77
+Subproject commit 31ff17c21abd5321ae104364a8b05c2d27b3ef3b