diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e874383..c611cb4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,18 +10,13 @@ jobs:
       fail-fast: false
       matrix:
         ruby-version:
-          - '2.7'
-          - '3.0'
           - '3.1'
           - '3.2'
           - '3.3'
         gemfile:
-          - rails6.0
           - rails6.1
           - rails7.0
           - rails7.1
-        include:
-          - {ruby-version: '2.7', gemfile: rails5.2}
     env:
       BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
     steps:
diff --git a/.ruby-version b/.ruby-version
index 6a81b4c..0aec50e 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.8
+3.1.4
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e452823..fe503fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+* Dropped support for Ruby < 3.1.
+* Dropped support for Rails < 6.1.
+
 ## [2.7.0] - 2023-11-14
 
 * Added support for Rails 7.1
diff --git a/Gemfile b/Gemfile
index 31d6d85..033bf94 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,3 @@
 source "https://rubygems.org"
 
-eval_gemfile("gemfiles/rails5.2.gemfile")
+eval_gemfile("gemfiles/rails6.1.gemfile")
diff --git a/charcoal.gemspec b/charcoal.gemspec
index 6850427..dbe8475 100644
--- a/charcoal.gemspec
+++ b/charcoal.gemspec
@@ -7,14 +7,14 @@ Gem::Specification.new("charcoal", Charcoal::VERSION) do |s|
   s.email = "sdavidovitz@zendesk.com"
   s.homepage = "https://github.com/zendesk/charcoal"
 
-  s.required_ruby_version = ">= 2.7"
+  s.required_ruby_version = ">= 3.1"
 
   s.files = Dir.glob("{lib,config,app}/**/*")
 
   s.licenses = ["MIT"]
 
-  s.add_runtime_dependency "activesupport", ">= 5.2", "< 7.2"
-  s.add_runtime_dependency "actionpack", ">= 5.2", "< 7.2"
+  s.add_runtime_dependency "activesupport", ">= 6.1", "< 7.2"
+  s.add_runtime_dependency "actionpack", ">= 6.1", "< 7.2"
 
   s.add_development_dependency "rake"
   s.add_development_dependency "yard", ">= 0.9.11"
diff --git a/gemfiles/rails5.2.gemfile b/gemfiles/rails5.2.gemfile
deleted file mode 100644
index 11c5d8c..0000000
--- a/gemfiles/rails5.2.gemfile
+++ /dev/null
@@ -1,4 +0,0 @@
-eval_gemfile "common.rb"
-
-gem "rails", "~> 5.2.0"
-gem "actionpack-action_caching"
diff --git a/gemfiles/rails6.0.gemfile b/gemfiles/rails6.0.gemfile
deleted file mode 100644
index b098679..0000000
--- a/gemfiles/rails6.0.gemfile
+++ /dev/null
@@ -1,4 +0,0 @@
-eval_gemfile "common.rb"
-
-gem "rails", "~> 6.0.0"
-gem "actionpack-action_caching"