diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4221500..5fd3d06 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased] - 
+
+### Added
+- Add `Mel::Job::Template#run` abstract method
+
 ## [0.20.0] - 2024-04-16
 
 ### Changed
diff --git a/src/mel/job/template.cr b/src/mel/job/template.cr
index d75037c..734f6dd 100644
--- a/src/mel/job/template.cr
+++ b/src/mel/job/template.cr
@@ -1,4 +1,6 @@
 module Mel::Job::Template
+  abstract def run
+
   macro included
     include JSON::Serializable