diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ad9a70f..1bbeb9f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,7 +6,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     container:
-       image: ruby:2.7.1
+       image: ruby:3.0.1
     services:
       postgres:
         image: postgres:12
diff --git a/.rubocop.yml b/.rubocop.yml
index 2a74c42..491bf40 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,6 +3,7 @@ inherit_from: ".rubocop_todo.yml"
 require:
   - rubocop-minitest
   - rubocop-performance
+  - rubocop-rake
   - rubocop-sequel
 
 AllCops:
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 0acfe9e..219851a 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,7 +1,7 @@
 Metrics/AbcSize:
-  Max: 21.79
+  Max: 25.04
 Metrics/BlockLength:
-  ExcludedMethods: ['describe', 'route']
+  IgnoredMethods: ['describe', 'route']
 Metrics/MethodLength:
   Max: 13
 Minitest:
diff --git a/.ruby-version b/.ruby-version
index 860487c..cb2b00e 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.1
+3.0.1
diff --git a/Dockerfile b/Dockerfile
index 179ebdd..1bbc3d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7.1
+FROM ruby:3.0.1
 
 RUN mkdir /app
 WORKDIR /app
diff --git a/Gemfile b/Gemfile
index 3225567..11d3414 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@
 
 source 'https://rubygems.org'
 
-ruby '2.7.1'
+ruby '3.0.1'
 
 gem 'money'
 gem 'oj'
@@ -15,14 +15,19 @@ gem 'rufus-scheduler'
 gem 'sequel_pg'
 gem 'unicorn'
 
+group :development, :test do
+  gem 'pry-byebug'
+  gem 'rubocop-minitest'
+  gem 'rubocop-performance'
+  gem 'rubocop-rake'
+  gem 'rubocop-sequel'
+end
+
 group :test do
   gem 'minitest'
   gem 'minitest-around'
   gem 'minitest-focus'
   gem 'rack-test'
-  gem 'rubocop-minitest'
-  gem 'rubocop-performance'
-  gem 'rubocop-sequel'
   gem 'simplecov'
   gem 'vcr'
   gem 'webmock'
diff --git a/Gemfile.lock b/Gemfile.lock
index 098d6e1..24d10ad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,38 +3,46 @@ GEM
   specs:
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
-    ast (2.4.0)
-    concurrent-ruby (1.1.6)
-    crack (0.4.3)
-      safe_yaml (~> 1.0.0)
-    docile (1.3.2)
+    ast (2.4.2)
+    byebug (11.1.3)
+    coderay (1.1.3)
+    concurrent-ruby (1.1.8)
+    crack (0.4.5)
+      rexml
+    docile (1.3.5)
     et-orbi (1.2.4)
       tzinfo
-    fugit (1.3.4)
+    fugit (1.4.5)
       et-orbi (~> 1.1, >= 1.1.8)
-      raabro (~> 1.1)
+      raabro (~> 1.4)
     hashdiff (1.0.1)
-    i18n (1.8.2)
+    i18n (1.8.10)
       concurrent-ruby (~> 1.0)
-    jaro_winkler (1.5.4)
     kgio (2.11.3)
-    minitest (5.14.0)
+    method_source (1.0.0)
+    minitest (5.14.4)
     minitest-around (0.5.0)
       minitest (~> 5.0)
-    minitest-focus (1.1.2)
+    minitest-focus (1.2.1)
       minitest (>= 4, < 6)
-    money (6.13.7)
+    money (6.14.1)
       i18n (>= 0.6.4, <= 2)
-    oj (3.10.6)
-    ox (2.13.2)
-    parallel (1.19.1)
-    parser (2.7.1.2)
-      ast (~> 2.4.0)
+    oj (3.11.5)
+    ox (2.14.4)
+    parallel (1.20.1)
+    parser (3.0.1.0)
+      ast (~> 2.4.1)
     pg (1.2.3)
-    public_suffix (4.0.4)
-    raabro (1.1.6)
+    pry (0.13.1)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    pry-byebug (3.9.0)
+      byebug (~> 11.0)
+      pry (~> 0.13.0)
+    public_suffix (4.0.6)
+    raabro (1.4.0)
     rack (2.2.3)
-    rack-contrib (2.2.0)
+    rack-contrib (2.3.0)
       rack (~> 2.0)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
@@ -42,44 +50,52 @@ GEM
       rack (>= 1.0, < 3)
     rainbow (3.0.0)
     raindrops (0.19.1)
-    rake (13.0.1)
+    rake (13.0.3)
+    regexp_parser (2.1.1)
     rexml (3.2.5)
-    roda (3.31.0)
+    roda (3.43.1)
       rack
-    rubocop (0.82.0)
-      jaro_winkler (~> 1.5.1)
+    rubocop (1.13.0)
       parallel (~> 1.10)
-      parser (>= 2.7.0.1)
+      parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
       rexml
+      rubocop-ast (>= 1.2.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-minitest (0.9.0)
-      rubocop (>= 0.74)
-    rubocop-performance (1.5.2)
-      rubocop (>= 0.71.0)
-    rubocop-sequel (0.0.6)
-      rubocop (~> 0.55, >= 0.55)
-    ruby-progressbar (1.10.1)
-    rufus-scheduler (3.6.0)
+      unicode-display_width (>= 1.4.0, < 3.0)
+    rubocop-ast (1.4.1)
+      parser (>= 2.7.1.5)
+    rubocop-minitest (0.12.0)
+      rubocop (>= 0.90, < 2.0)
+    rubocop-performance (1.11.0)
+      rubocop (>= 1.7.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
+    rubocop-rake (0.5.1)
+      rubocop
+    rubocop-sequel (0.2.0)
+      rubocop (~> 1.0)
+    ruby-progressbar (1.11.0)
+    rufus-scheduler (3.7.0)
       fugit (~> 1.1, >= 1.1.6)
-    safe_yaml (1.0.5)
-    sequel (5.32.0)
-    sequel_pg (1.13.0)
+    sequel (5.43.0)
+    sequel_pg (1.14.0)
       pg (>= 0.18.0, != 1.2.0)
       sequel (>= 4.38.0)
-    simplecov (0.18.5)
+    simplecov (0.21.2)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
-    simplecov-html (0.12.2)
-    tzinfo (2.0.2)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.2)
+    tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (1.7.0)
-    unicorn (5.5.5)
+    unicode-display_width (2.0.0)
+    unicorn (6.0.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)
-    vcr (5.1.0)
-    webmock (3.8.3)
+    vcr (6.0.0)
+    webmock (3.12.2)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
@@ -94,6 +110,7 @@ DEPENDENCIES
   money
   oj
   ox
+  pry-byebug
   rack-contrib
   rack-cors
   rack-test
@@ -101,6 +118,7 @@ DEPENDENCIES
   roda
   rubocop-minitest
   rubocop-performance
+  rubocop-rake
   rubocop-sequel
   rufus-scheduler
   sequel_pg
@@ -110,7 +128,7 @@ DEPENDENCIES
   webmock
 
 RUBY VERSION
-   ruby 2.7.1p83
+   ruby 3.0.1p64
 
 BUNDLED WITH
-   2.1.4
+   2.2.15
diff --git a/lib/tasks/db.rake b/lib/tasks/db.rake
index ed9c12e..ff2028b 100644
--- a/lib/tasks/db.rake
+++ b/lib/tasks/db.rake
@@ -12,9 +12,11 @@ namespace :db do
     Sequel::IntegerMigrator.new(db, dir, opts).run
   end
 
+  desc 'Run database migrations and seed data'
   task prepare: %w[db:migrate rates:all]
 
   namespace :test do
+    desc 'Run database migrations and seed with saved data'
     task :prepare do
       ENV['APP_ENV'] ||= 'test'
       Rake::Task['db:migrate'].invoke
diff --git a/lib/tasks/environment.rake b/lib/tasks/environment.rake
index 95c6e48..ac9e199 100644
--- a/lib/tasks/environment.rake
+++ b/lib/tasks/environment.rake
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+desc 'Load environment'
 task :environment do
   require './config/environment'
 end
diff --git a/lib/tasks/rates.rake b/lib/tasks/rates.rake
index 75b09f7..91f4541 100644
--- a/lib/tasks/rates.rake
+++ b/lib/tasks/rates.rake
@@ -19,6 +19,7 @@ namespace :rates do
     Bank.fetch_current!
   end
 
+  desc 'Seed with saved data'
   task :seed_with_saved_data do
     require 'bank'
     Bank.seed_with_saved_data!
diff --git a/spec/helper.rb b/spec/helper.rb
index bb53787..3264453 100644
--- a/spec/helper.rb
+++ b/spec/helper.rb
@@ -14,6 +14,7 @@ require_relative '../config/environment'
 require 'minitest/autorun'
 require 'minitest/around/spec'
 require 'minitest/focus'
+require 'pry-byebug'
 require 'vcr'
 require 'webmock'