diff --git a/Gemfile b/Gemfile
index 6fe376b..23a02eb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ group :test do
   gem 'minitest',            '~> 5.17'
   gem 'minitest-reporters', '~> 1.4', '>= 1.4.3'
   gem 'rack-test',           '~> 2.0'
-  gem 'rubocop',             '~> 1.44'
+  gem 'rubocop',             '~> 1.50'
   gem 'rubocop-minitest',    '~> 0.27.0'
   gem 'rubocop-performance', '~> 1.15'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 223cfb2..821b854 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
     net-smtp (0.3.3)
       net-protocol
     parallel (1.22.1)
-    parser (3.2.0.0)
+    parser (3.2.2.0)
       ast (~> 2.4.1)
     passenger (6.0.17)
       rack
@@ -36,26 +36,26 @@ GEM
       rack (>= 1.3)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.6.2)
+    regexp_parser (2.7.0)
     rexml (3.2.5)
-    rubocop (1.44.1)
+    rubocop (1.50.2)
       json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.2.0.0)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.24.1, < 2.0)
+      rubocop-ast (>= 1.28.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.24.1)
-      parser (>= 3.1.1.0)
+    rubocop-ast (1.28.0)
+      parser (>= 3.2.1.0)
     rubocop-minitest (0.27.0)
       rubocop (>= 0.90, < 2.0)
     rubocop-performance (1.15.2)
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
-    ruby-progressbar (1.11.0)
+    ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
     sinatra (2.2.2)
       mustermann (~> 2.0)
@@ -80,7 +80,7 @@ DEPENDENCIES
   prometheus-client (~> 2.1)
   rack (~> 2.2)
   rack-test (~> 2.0)
-  rubocop (~> 1.44)
+  rubocop (~> 1.50)
   rubocop-minitest (~> 0.27.0)
   rubocop-performance (~> 1.15)
   sinatra (~> 2.1)