diff --git a/importmap-rails.gemspec b/importmap-rails.gemspec
index 5dbbf66..9d33c16 100644
--- a/importmap-rails.gemspec
+++ b/importmap-rails.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
 
   spec.files = Dir["{app,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
 
-  spec.required_ruby_version = ">= 2.7.0"
+  spec.required_ruby_version = ">= 3.1.0"
   spec.add_dependency "railties", ">= 6.0.0"
   spec.add_dependency "activesupport", ">= 6.0.0"
   spec.add_dependency "actionpack", ">= 6.0.0"