diff --git a/.ruby-version b/.ruby-version
index eca690e73..acf9bf09d 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.0.5
+3.2.2
\ No newline at end of file
diff --git a/lib/suspenders/app_builder.rb b/lib/suspenders/app_builder.rb
index 8beb5547f..f867603d2 100644
--- a/lib/suspenders/app_builder.rb
+++ b/lib/suspenders/app_builder.rb
@@ -155,7 +155,7 @@ def replace_gemfile
     end
 
     def ruby_version
-      create_file ".ruby-version", "#{Suspenders::RUBY_VERSION}\n"
+      create_file ".ruby-version", "#{::RUBY_VERSION}\n"
     end
 
     def configure_i18n_for_missing_translations
diff --git a/lib/suspenders/version.rb b/lib/suspenders/version.rb
index 606b536ea..4cf6b0e20 100644
--- a/lib/suspenders/version.rb
+++ b/lib/suspenders/version.rb
@@ -1,8 +1,9 @@
 module Suspenders
   RAILS_VERSION = "~> 7.0.0".freeze
-  RUBY_VERSION = IO
-    .read("#{File.dirname(__FILE__)}/../../.ruby-version")
-    .strip
-    .freeze
+
+  minimum_ruby_version = "3.0.5"
+  maximum_ruby_version = Pathname(__dir__).join("../../.ruby-version").read.strip
+
+  RUBY_VERSION_RANGE = [minimum_ruby_version, maximum_ruby_version].freeze
   VERSION = "20230113.0".freeze
 end
diff --git a/spec/features/new_project_spec.rb b/spec/features/new_project_spec.rb
index be19738b0..f232b958e 100644
--- a/spec/features/new_project_spec.rb
+++ b/spec/features/new_project_spec.rb
@@ -11,7 +11,7 @@
   it "uses custom Gemfile" do
     gemfile_file = IO.read("#{project_path}/Gemfile")
     expect(gemfile_file).to match(
-      /^ruby "#{Suspenders::RUBY_VERSION}"$/o
+      /^ruby "#{RUBY_VERSION}"$/o
     )
     expect(gemfile_file).to match(
       /^gem "rails", "#{Suspenders::RAILS_VERSION}"$/o
@@ -34,8 +34,8 @@
     end
   end
 
-  it "creates .ruby-version from Suspenders .ruby-version" do
-    ruby_version_file = IO.read("#{project_path}/.ruby-version")
+  it "creates .ruby-version with the running ruby version" do
+    ruby_version_file = project_path.join(".ruby-version").read
 
     expect(ruby_version_file).to eq "#{RUBY_VERSION}\n"
   end
diff --git a/suspenders.gemspec b/suspenders.gemspec
index dde3b1cef..b9d3ad069 100644
--- a/suspenders.gemspec
+++ b/suspenders.gemspec
@@ -3,7 +3,9 @@ require "suspenders/version"
 require "date"
 
 Gem::Specification.new do |s|
-  s.required_ruby_version = ">= #{Suspenders::RUBY_VERSION}"
+  minimum, maximum = Suspenders::RUBY_VERSION_RANGE
+
+  s.required_ruby_version = [">= #{minimum}", "<= #{maximum}"]
   s.required_rubygems_version = ">= 3.0.0"
   s.authors = ["thoughtbot"]
 
diff --git a/templates/Gemfile.erb b/templates/Gemfile.erb
index 5442decb1..26575ed40 100644
--- a/templates/Gemfile.erb
+++ b/templates/Gemfile.erb
@@ -5,7 +5,7 @@ git_source(:github) do |repo_name|
   "https://github.com/#{repo_name}.git"
 end
 
-ruby "<%= Suspenders::RUBY_VERSION %>"
+ruby <%= RUBY_VERSION.inspect %>
 
 <% if options[:api] %>
 gem "sprockets", "< 4"