diff --git a/graphql-client.gemspec b/graphql-client.gemspec
index b5324df3..dea5a8c4 100644
--- a/graphql-client.gemspec
+++ b/graphql-client.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "minitest", "~> 5.9"
   s.add_development_dependency "rake", "~> 13.2.1"
   s.add_development_dependency "rubocop-github"
-  s.add_development_dependency "rubocop", "~> 1.66.1"
+  s.add_development_dependency "rubocop", "~> 1.73.2"
 
   s.required_ruby_version = ">= 2.1.0"
 
diff --git a/lib/rubocop/cop/graphql/heredoc.rb b/lib/rubocop/cop/graphql/heredoc.rb
index 19f92d9d..43c2b4ec 100644
--- a/lib/rubocop/cop/graphql/heredoc.rb
+++ b/lib/rubocop/cop/graphql/heredoc.rb
@@ -5,7 +5,7 @@ module RuboCop
   module Cop
     module GraphQL
       # Public: Cop for enforcing non-interpolated GRAPHQL heredocs.
-      class Heredoc < Cop
+      class Heredoc < Base
         def on_dstr(node)
           check_str(node)
         end
@@ -19,11 +19,11 @@ def check_str(node)
           return unless node.location.expression.source =~ /^<<(-|~)?GRAPHQL/
 
           node.each_child_node(:begin) do |begin_node|
-            add_offense(begin_node, location: :expression, message: "Do not interpolate variables into GraphQL queries, " \
+            add_offense(begin_node, message: "Do not interpolate variables into GraphQL queries, " \
               "used variables instead.")
           end
 
-          add_offense(node, location: :expression, message: "GraphQL heredocs should be quoted. <<-'GRAPHQL'")
+          add_offense(node, message: "GraphQL heredocs should be quoted. <<-'GRAPHQL'")
         end
 
         def autocorrect(node)
diff --git a/lib/rubocop/cop/graphql/overfetch.rb b/lib/rubocop/cop/graphql/overfetch.rb
index bd98084d..182fe838 100644
--- a/lib/rubocop/cop/graphql/overfetch.rb
+++ b/lib/rubocop/cop/graphql/overfetch.rb
@@ -8,7 +8,7 @@ module RuboCop
   module Cop
     module GraphQL
       # Public: Rubocop for catching overfetched fields in ERB templates.
-      class Overfetch < Cop
+      class Overfetch < Base
         if defined?(RangeHelp)
           # rubocop 0.53 moved the #source_range method into this module
           include RangeHelp
@@ -42,7 +42,7 @@ def investigate(processed_source)
 
           visitor.fields.each do |field, count|
             next if count > 0
-            add_offense(nil, location: visitor.ranges[field], message: "GraphQL field '#{field}' query but was not used in template.")
+            add_offense(nil, message: "GraphQL field '#{field}' query but was not used in template.")
           end
         end
 
diff --git a/test/test_client_errors.rb b/test/test_client_errors.rb
index 3937d48b..f7f49af7 100644
--- a/test/test_client_errors.rb
+++ b/test/test_client_errors.rb
@@ -310,7 +310,7 @@ def test_errors_collection
       "errors" => [
         {
           "message" => "b00m",
-          "locations" => [{"line" => 1, "column" => 3}],
+          "locations" => [{ "line" => 1, "column" => 3 }],
           "path" => ["nullableError"]
         }
       ]
diff --git a/test/test_client_schema.rb b/test/test_client_schema.rb
index 34d681e6..bb8d7fbb 100644
--- a/test/test_client_schema.rb
+++ b/test/test_client_schema.rb
@@ -61,7 +61,7 @@ def test_dump_schema_io
 
   def test_dump_schema_context
     conn = FakeConn.new
-    GraphQL::Client.dump_schema(conn, StringIO.new, context: { user_id: 1})
+    GraphQL::Client.dump_schema(conn, StringIO.new, context: { user_id: 1 })
     assert_equal({ user_id: 1 }, conn.context)
   end
 end
diff --git a/test/test_query_result.rb b/test/test_query_result.rb
index ed6cd83e..0930eeea 100644
--- a/test/test_query_result.rb
+++ b/test/test_query_result.rb
@@ -270,7 +270,7 @@ def test_snakecase_field_aliases
     GRAPHQL
 
     person = Temp::Person.new(@client.query(Temp::Query).data.me)
-    raw_result = {"firstName"=>"Joshua", "lastName"=>"Peek"}
+    raw_result = { "firstName" => "Joshua", "lastName" => "Peek" }
     assert_equal raw_result, person.to_h
     assert_equal raw_result, person.to_hash