diff --git a/Gemfile.lock b/Gemfile.lock
index 85962b5..e5078cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -19,6 +19,7 @@ GEM
       minitest (>= 5.1)
       tzinfo (~> 2.0)
     ast (2.4.2)
+    base64 (0.1.1)
     builder (3.2.4)
     concurrent-ruby (1.2.2)
     crass (1.0.6)
@@ -26,7 +27,8 @@ GEM
     erubi (1.12.0)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
-    json (2.6.2)
+    json (2.6.3)
+    language_server-protocol (3.17.0.3)
     loofah (2.21.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -37,9 +39,10 @@ GEM
       racc (~> 1.4)
     nokogiri (1.15.4-x86_64-linux)
       racc (~> 1.4)
-    parallel (1.22.1)
-    parser (3.1.2.0)
+    parallel (1.23.0)
+    parser (3.2.2.3)
       ast (~> 2.4.1)
+      racc
     racc (1.7.1)
     rack (3.0.8)
     rails-dom-testing (2.2.0)
@@ -51,8 +54,8 @@ GEM
       nokogiri (~> 1.14)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.5.0)
-    rexml (3.2.5)
+    regexp_parser (2.8.1)
+    rexml (3.2.6)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -66,33 +69,35 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
     rspec-support (3.12.1)
-    rubocop (1.31.2)
+    rubocop (1.56.3)
+      base64 (~> 0.1.1)
       json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.1.0.0)
+      parser (>= 3.2.2.3)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.18.0, < 2.0)
+      rubocop-ast (>= 1.28.1, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.19.1)
-      parser (>= 3.1.1.0)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.29.0)
+      parser (>= 3.2.1.0)
     rubocop-github (0.18.0)
       rubocop (>= 1.0.0)
       rubocop-performance
       rubocop-rails
-    rubocop-performance (1.14.3)
+    rubocop-performance (1.19.1)
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
     rubocop-rails (2.15.2)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.7.0, < 2.0)
-    ruby-progressbar (1.11.0)
+    ruby-progressbar (1.13.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (2.2.0)
+    unicode-display_width (2.4.2)
 
 PLATFORMS
   arm64-darwin-21
diff --git a/test/cop_test.rb b/test/cop_test.rb
index d271106..bb9e298 100644
--- a/test/cop_test.rb
+++ b/test/cop_test.rb
@@ -11,13 +11,13 @@ def cop_class
   attr_reader :cop
 
   def setup
-    config = RuboCop::Config.new
-    @cop = cop_class.new(config)
+    @config = RuboCop::Config.new
+    @cop = cop_class.new(@config)
   end
 
   def investigate(cop, src, filename = nil)
     processed_source = RuboCop::ProcessedSource.new(src, RUBY_VERSION.to_f, filename)
-    team = RuboCop::Cop::Team.new([cop], nil, raise_error: true)
+    team = RuboCop::Cop::Team.new([cop], @config, raise_error: true)
     report = team.investigate(processed_source)
     report.offenses
   end
diff --git a/test/test_image_has_alt.rb b/test/test_image_has_alt.rb
index 7e79b47..5cf5fee 100644
--- a/test/test_image_has_alt.rb
+++ b/test/test_image_has_alt.rb
@@ -15,7 +15,7 @@ def test_image_has_alt_offense
     ERB
 
     assert_equal 1, offenses.count
-    assert_equal "Images should have an alt prop with meaningful text or an empty string for decorative images",
+    assert_equal "RailsAccessibility/ImageHasAlt: Images should have an alt prop with meaningful text or an empty string for decorative images",
                  offenses[0].message
   end
 
diff --git a/test/test_no_positive_tabindex.rb b/test/test_no_positive_tabindex.rb
index cfb611b..e8a5165 100644
--- a/test/test_no_positive_tabindex.rb
+++ b/test/test_no_positive_tabindex.rb
@@ -15,7 +15,7 @@ def test_no_positive_tabindex_alt_offense
     ERB
 
     assert_equal 1, offenses.count
-    assert_equal "Positive tabindex is error-prone and often inaccessible.", offenses[0].message
+    assert_equal "RailsAccessibility/NoPositiveTabindex: Positive tabindex is error-prone and often inaccessible.", offenses[0].message
   end
 
   def test_no_positive_tabindex_alt_no_offense
diff --git a/test/test_no_redundant_image_alt.rb b/test/test_no_redundant_image_alt.rb
index 01b5fdf..ffc1418 100644
--- a/test/test_no_redundant_image_alt.rb
+++ b/test/test_no_redundant_image_alt.rb
@@ -15,7 +15,7 @@ def test_no_redundant_image_alt_offense
     ERB
 
     assert_equal 1, offenses.count
-    assert_equal "Alt prop should not contain `image` or `picture` as screen readers already announce the element as an image",
+    assert_equal "RailsAccessibility/NoRedundantImageAlt: Alt prop should not contain `image` or `picture` as screen readers already announce the element as an image",
                  offenses[0].message
   end