diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f8eef1..4b51ce5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 * Your changes/patches go here.
 
+- [CHORE: Remove GPL licensed dependency Colorize and replace it with Rainbow]
+
 # v1.3.0 / 2023-06-16 [(commits)](https://github.com/fastruby/next_rails/compare/v1.2.4...v1.3.0)
 
 - [FEATURE: Add NextRails.next? for application usage (e.g. Rails shims)](https://github.com/fastruby/next_rails/pull/97)
diff --git a/exe/deprecations b/exe/deprecations
index 3d476de..b4712d6 100755
--- a/exe/deprecations
+++ b/exe/deprecations
@@ -1,9 +1,11 @@
 #!/usr/bin/env ruby
 require "json"
-require "colorize"
+require "rainbow/refinement"
 require "optparse"
 require "set"
 
+using Rainbow
+
 def run_tests(deprecation_warnings, opts = {})
   tracker_mode = opts[:tracker_mode]
   next_mode = opts[:next_mode]
diff --git a/lib/deprecation_tracker.rb b/lib/deprecation_tracker.rb
index 89cd337..7277773 100644
--- a/lib/deprecation_tracker.rb
+++ b/lib/deprecation_tracker.rb
@@ -1,6 +1,8 @@
-require "colorize"
+require "rainbow/refinement"
 require "json"
 
+using Rainbow
+
 # A shitlist for deprecation warnings during test runs. It has two modes: "save" and "compare"
 #
 # DEPRECATION_TRACKER=save
diff --git a/lib/next_rails/bundle_report.rb b/lib/next_rails/bundle_report.rb
index 41b7be4..49070c4 100644
--- a/lib/next_rails/bundle_report.rb
+++ b/lib/next_rails/bundle_report.rb
@@ -1,9 +1,11 @@
-require "colorize"
+require "rainbow/refinement"
 require "cgi"
 require "erb"
 require "json"
 require "net/http"
 
+using Rainbow
+
 module NextRails
   module BundleReport
     extend self
@@ -168,4 +170,4 @@ def output_to_stdout(out_of_date_gems, total_gem_count, sourced_from_git_count)
       puts footer
     end
   end
-end
\ No newline at end of file
+end
diff --git a/next_rails.gemspec b/next_rails.gemspec
index cf69fe6..e073411 100644
--- a/next_rails.gemspec
+++ b/next_rails.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "colorize", ">= 0.8.1"
+  spec.add_dependency "rainbow", ">= 3"
   spec.add_development_dependency "bundler", ">= 1.16", "< 3.0"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec", "~> 3.0"
diff --git a/spec/bundle_report_spec.rb b/spec/bundle_report_spec.rb
index 0882764..a5c97ae 100644
--- a/spec/bundle_report_spec.rb
+++ b/spec/bundle_report_spec.rb
@@ -5,6 +5,8 @@
 require_relative 'spec_helper'
 require_relative '../lib/next_rails/bundle_report'
 
+using Rainbow
+
 RSpec.describe NextRails::BundleReport do
   describe '.outdated' do
     let(:mock_version) { Struct.new(:version, :age) }