diff --git a/lib/pinhole/browser.rb b/lib/pinhole/browser.rb
index 600ea15..93eb303 100644
--- a/lib/pinhole/browser.rb
+++ b/lib/pinhole/browser.rb
@@ -5,6 +5,7 @@ module Pinhole
   # Image browser. Displays images as a set of icons.
   class Browser
     extend Forwardable
+
     def_delegators :@widget, :to_ptr, :set_visible
 
     def initialize
diff --git a/lib/pinhole/image.rb b/lib/pinhole/image.rb
index 45abcdb..18565a2 100644
--- a/lib/pinhole/image.rb
+++ b/lib/pinhole/image.rb
@@ -5,6 +5,7 @@ module Pinhole
   # Image viewer. Displays a single image and allows zooming
   class Image
     extend Forwardable
+
     def_delegators :@widget, :to_ptr, :set_visible, :show_all
 
     _, COLOR_BLACK = Gdk.color_parse "black"
diff --git a/pinhole.gemspec b/pinhole.gemspec
index 383845a..3e1c073 100644
--- a/pinhole.gemspec
+++ b/pinhole.gemspec
@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rake-manifest", "~> 0.2.0"
-  spec.add_development_dependency "rubocop", "~> 1.76"
+  spec.add_development_dependency "rubocop", "~> 1.79"
   spec.add_development_dependency "rubocop-packaging", "~> 0.6.0"
   spec.add_development_dependency "rubocop-performance", "~> 1.25"
   spec.add_development_dependency "rubocop-rake", "~> 0.7.1"