lib/generators/crono/install/templates/migrations/create_crono_jobs.rb in crono-0.6.1 vs lib/generators/crono/install/templates/migrations/create_crono_jobs.rb in crono-0.7.0

@@ -2,10 +2,10 @@
   def self.up
     create_table :crono_jobs do |t|
       t.string    :job_id, null: false
       t.text      :log
       t.datetime  :last_performed_at
-      t.timestamps
+      t.timestamps null: false
     end
     add_index :crono_jobs, [:job_id], unique: true
   end
 
   def self.down