diff --git a/CHANGES.rst b/CHANGES.rst
index 7f2e3d3..13289f9 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,6 +4,7 @@ Changelog
2.1.0 (unreleased)
------------------
+- #28 Added upgrade step event subscriber
- #27 Integrate dispatch workflow from senaite.core
- #26 Disallow to modify portal content when stored/booked out samples
- #25 Remove booked out samples from container
diff --git a/src/senaite/storage/subscribers/configure.zcml b/src/senaite/storage/subscribers/configure.zcml
index e0b2d4a..cd5b293 100644
--- a/src/senaite/storage/subscribers/configure.zcml
+++ b/src/senaite/storage/subscribers/configure.zcml
@@ -2,6 +2,12 @@
xmlns="http://namespaces.zope.org/zope"
i18n_domain="senaite.storage">
+
+
+