diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7227bfb..cc761b3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby: ['2.7', '3.0', '3.1']
-        rails: ['5.2', '6.1', '7.1']
+        rails: ['6.1', '7.1']
     env:
       BUNDLE_GEMFILE: 'gemfiles/rails_${{ matrix.rails }}.gemfile'
     steps:
diff --git a/.rubocop.yml b/.rubocop.yml
index 4097d65..39764d8 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -13,7 +13,7 @@ AllCops:
   SuggestExtensions: false
   DisplayCopNames: true
   TargetRubyVersion: 2.7
-  TargetRailsVersion: 5.2
+  TargetRailsVersion: 6.1
   Exclude:
     - bin/**/*
     - vendor/**/*
diff --git a/Appraisals b/Appraisals
index 15aa0af..14cdee6 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,11 +1,5 @@
 # frozen_string_literal: true
 
-appraise 'rails-5.2' do
-  gem 'activejob', '~> 5.2.0'
-  gem 'activerecord', '~> 5.2.0'
-  gem 'activesupport', '~> 5.2.0'
-end
-
 appraise 'rails-6.1' do
   gem 'activejob', '~> 6.1.0'
   gem 'activerecord', '~> 6.1.0'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d63b875..47c1a9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 ### next
 
-* TODO: Replace this bullet point with an actual description of a change.
+* Raised minimum supported Ruby/Rails version to 2.7/6.1 (#7)
 
 ### 1.4.4 (15 August 2024)
 
diff --git a/boltless.gemspec b/boltless.gemspec
index 810019a..e511b0a 100644
--- a/boltless.gemspec
+++ b/boltless.gemspec
@@ -32,12 +32,12 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.7'
 
-  spec.add_runtime_dependency 'activesupport', '>= 5.2'
-  spec.add_runtime_dependency 'colorize', '>= 0.8.0'
-  spec.add_runtime_dependency 'connection_pool', '~> 2.3'
-  spec.add_runtime_dependency 'fast_jsonparser', '>= 0.6.0'
-  spec.add_runtime_dependency 'http', '~> 5.0'
-  spec.add_runtime_dependency 'oj', '~> 3.13'
-  spec.add_runtime_dependency 'rake', '~> 13.0'
-  spec.add_runtime_dependency 'zeitwerk', '~> 2.6'
+  spec.add_dependency 'activesupport', '>= 6.1'
+  spec.add_dependency 'colorize', '>= 0.8.0'
+  spec.add_dependency 'connection_pool', '~> 2.3'
+  spec.add_dependency 'fast_jsonparser', '>= 0.6.0'
+  spec.add_dependency 'http', '~> 5.0'
+  spec.add_dependency 'oj', '~> 3.13'
+  spec.add_dependency 'rake', '~> 13.0'
+  spec.add_dependency 'zeitwerk', '~> 2.6'
 end
diff --git a/gemfiles/rails_5.2.gemfile b/gemfiles/rails_5.2.gemfile
deleted file mode 100644
index 7dac54e..0000000
--- a/gemfiles/rails_5.2.gemfile
+++ /dev/null
@@ -1,22 +0,0 @@
-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "appraisal", "~> 2.4"
-gem "benchmark-ips", "~> 2.10"
-gem "bundler", "~> 2.3"
-gem "countless", "~> 1.1"
-gem "guard-rspec", "~> 4.7"
-gem "irb", "~> 1.2"
-gem "rspec", "~> 3.12"
-gem "rubocop", "~> 1.28"
-gem "rubocop-rails", "~> 2.14"
-gem "rubocop-rspec", "~> 2.10"
-gem "simplecov", ">= 0.22"
-gem "yard", ">= 0.9.28"
-gem "yard-activesupport-concern", ">= 0.0.1"
-gem "activejob", "~> 5.2.0"
-gem "activerecord", "~> 5.2.0"
-gem "activesupport", "~> 5.2.0"
-
-gemspec path: "../"