diff --git a/Gemfile b/Gemfile
index 9c685de..2de6914 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-ruby '>= 2.3.0', '< 2.7.0' if Bundler::VERSION >= '1.12.0'
+ruby '>= 2.3.0', '< 2.8.0' if Bundler::VERSION >= '1.12.0'
 gem "bundler", ">= 1.5.0"
 
 gem 'rails', '5.2.6.3'
@@ -86,7 +86,7 @@ group :test do
   gem "simplecov", "~> 0.17.0", :require => false
   gem "ffi", platforms: [:mingw, :x64_mingw, :mswin]
   # For running system tests
-  gem 'puma', '~> 3.7'
+  gem 'puma', '~> 5.6.8'
   gem "capybara", (RUBY_VERSION < "2.4" ? "~> 3.15.1" : "~> 3.25.0")
   gem "selenium-webdriver"
   # RuboCop