Changelog diff is:

diff --git a/Changes b/Changes
index 198c86f..305a933 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,8 @@
 Revision history for Perl extension Mojolicious-Plugin-Prometheus

 {{$NEXT}}
+
+1.2.1 2018-09-18T19:03:52Z
     - Correct packaging error

 1.2.0 2018-09-18T18:38:01Z