diff --git a/Gemfile b/Gemfile
index ab9a72b..34a081d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gemspec
 
 group(:development, :test) do
   gem('rake', '~> 13.2.1')
-  gem('irb', '~> 1.12.0')
+  gem('irb', '~> 1.13.0')
   gem('irb-power_assert', '~> 0.2.0')
 end