diff --git a/Gemfile b/Gemfile
index b5c886c..8a3576a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,24 +4,24 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 ruby '2.3.1'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '~> 5.2.6', '>= 5.2.6.3'
+gem 'rails', '~> 6.1.7', '>= 6.1.7.3'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3'
 # Use Puma as the app server
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 4.3', '>= 4.3.12'
 # Use SCSS for stylesheets
-gem 'sass-rails', '~> 5.0'
+gem 'sass-rails', '~> 6.0', '>= 6.0.0'
 # Use Uglifier as compressor for JavaScript assets
 gem 'uglifier', '>= 1.3.0'
 # See https://github.com/rails/execjs#readme for more supported runtimes
 # gem 'mini_racer', platforms: :ruby
 
 # Use CoffeeScript for .coffee assets and views
-gem 'coffee-rails', '~> 4.2'
+gem 'coffee-rails', '~> 4.2', '>= 4.2.2'
 # Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
 gem 'turbolinks', '~> 5'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
-gem 'jbuilder', '~> 2.5'
+gem 'jbuilder', '~> 2.7', '>= 2.7.0'
 # Use Redis adapter to run Action Cable in production
 # gem 'redis', '~> 4.0'
 # Use ActiveModel has_secure_password
@@ -43,21 +43,21 @@ gem "slack-notifier"
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
-  gem 'rspec-rails', '~> 3.8'
+  gem 'rspec-rails', '~> 3.8', '>= 3.8.0'
 end
 
 group :development do
   # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
-  gem 'web-console', '>= 3.3.0'
+  gem 'web-console', '>= 3.7.0'
   gem 'listen', '>= 3.0.5', '< 3.2'
   # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
   gem 'spring'
-  gem 'spring-watcher-listen', '~> 2.0.0'
+  gem 'spring-watcher-listen', '~> 2.0.1'
 end
 
 group :test do
   # Adds support for Capybara system testing and selenium driver
-  gem 'capybara', '>= 2.15'
+  gem 'capybara', '>= 3.9.0'
   gem 'selenium-webdriver'
   # Easy installation and use of chromedriver to run system tests with Chrome
   gem 'chromedriver-helper'