diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..b502146
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.0.2
diff --git a/dev.yml b/dev.yml
index 364fae1..8f39cf7 100644
--- a/dev.yml
+++ b/dev.yml
@@ -1,8 +1,7 @@
 name: measured-rails
 
 up:
-  - ruby:
-      version: 3.0.2
+  - ruby
   - bundler
 
 commands:
diff --git a/measured-rails.gemspec b/measured-rails.gemspec
index 9b53c11..40fd829 100644
--- a/measured-rails.gemspec
+++ b/measured-rails.gemspec
@@ -40,5 +40,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "sqlite3"
   spec.add_development_dependency "tapioca"
 
-  spec.required_ruby_version = ">= 2.7"
+  spec.required_ruby_version = ">= 3.0"
 end