diff --git a/db/migrate/20170509113030_remove_updated_at_from_activity.rb b/db/migrate/20170509113030_remove_updated_at_from_activity.rb
new file mode 100644
index 000000000..b38a2fa20
--- /dev/null
+++ b/db/migrate/20170509113030_remove_updated_at_from_activity.rb
@@ -0,0 +1,5 @@
+class RemoveUpdatedAtFromActivity < ActiveRecord::Migration
+  def change
+    remove_column :activities, :updated_at, :datetime
+  end
+end