diff --git a/ruby_on_rails/app_initialisation.md b/ruby_on_rails/app_initialisation.md
index 2a1ef551..73b0a8f4 100644
--- a/ruby_on_rails/app_initialisation.md
+++ b/ruby_on_rails/app_initialisation.md
@@ -40,6 +40,10 @@ Some other adjustments must be performed manually.
 
 ### Automatic adjustments
 
+> ⭐️The `config/database.yml` is updated to have a `collation: C.UTF-8` setting.
+> This ensures deterministic, locale-independent sorting and avoids inconsistencies between local and production
+> environments.
+
 > ⭐The Gemfile reads the required ruby version from the `.ruby-version` file.
 > [This is used by Heroku to determine what version to use.](https://devcenter.heroku.com/articles/ruby-versions)
 > Deploio reads the ruby version from the Gemfile, with the .ruby-version file inlined into it. https://paketo.io/docs/howto/ruby/#override-the-detected-ruby-version
diff --git a/ruby_on_rails/template.rb b/ruby_on_rails/template.rb
index 7d1d159c..bdb1c73f 100644
--- a/ruby_on_rails/template.rb
+++ b/ruby_on_rails/template.rb
@@ -1,5 +1,9 @@
-# replace rubocop-rails-omakase with renuocop
+# configure the database collation
+insert_into_file "config/database.yml", after: "adapter: postgresql\n" do
+  "  template: template0\n  collation: C.UTF-8\n"
+end
 
+# replace rubocop-rails-omakase with renuocop
 gsub_file "Gemfile", /gem "rubocop-rails-omakase"/, "gem \"renuocop\""
 
 insert_into_file "Gemfile", after: /^group :development do\n/ do
diff --git a/templates/config/database.mysql.example.yml b/templates/config/database.mysql.example.yml
deleted file mode 100644
index 051c3a37..00000000
--- a/templates/config/database.mysql.example.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-mysql: &mysql
-  adapter: mysql2
-  encoding: utf8
-  host: localhost
-  reconnect: true
-  pool: 5
-  username: ""
-  password: ""
-
-development:
-  <<: *mysql
-  database: <application>_development
-
-test:
-  <<: *mysql
-  database: <application>_test
-
-production:
-  <<: *mysql
-  database: <application>_production
diff --git a/templates/config/database.sqlite.example.yml b/templates/config/database.sqlite.example.yml
deleted file mode 100644
index 40593185..00000000
--- a/templates/config/database.sqlite.example.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-sqlite: &sqlite
-  adapter: sqlite3
-  pool: 5
-  timeout: 5000
-
-development:
-  <<: *sqlite
-  database: db/development.sqlite3
-
-test:
-  <<: *sqlite
-  database: db/test.sqlite3
-
-production:
-  <<: *sqlite
-  database: db/production.sqlite3
diff --git a/templates/config/database.yml b/templates/config/database.yml
deleted file mode 100644
index 286f529d..00000000
--- a/templates/config/database.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-# For details on connection pooling, see rails configuration guide
-# http://guides.rubyonrails.org/configuring.html#database-pooling
-
-default: &default
-  adapter: postgresql
-  encoding: unicode
-  pool: <%= ENV['DB_POOL'] || ENV['MAX_THREADS'] || 5 %>
-  # Minimum log levels, in increasing order: debug5, debug4, debug3, debug2, debug1, log, notice, warning, error,
-  # fatal, and panic. Defaults to warning. min_messages: warning
-  url: <%= ENV['DATABASE_URL'] %>
-
-development:
-  <<: *default
-  database: <application>_development
-
-test:
-  <<: *default
-  database: <application>_test
-
-production:
-  <<: *default