diff --git a/lib/super_diff/operational_sequencers/hash.rb b/lib/super_diff/operational_sequencers/hash.rb
index e017cf6a..b609a58f 100644
--- a/lib/super_diff/operational_sequencers/hash.rb
+++ b/lib/super_diff/operational_sequencers/hash.rb
@@ -108,7 +108,6 @@ def unary_operations_using_variant_of_patience_algorithm
               start_index.upto(eks.size - 1) do |ei2|
                 ek = eks[ei2]
                 ev, av2 = expected[ek], actual[ek]
-                ai2 = aks.index(ek)
 
                 if actual.include?(ek) && ev == av2
                   # If the key in 'expected' we've landed on happens to be a
diff --git a/lib/super_diff/rspec/augmented_matcher.rb b/lib/super_diff/rspec/augmented_matcher.rb
index ff0b943d..6957d280 100644
--- a/lib/super_diff/rspec/augmented_matcher.rb
+++ b/lib/super_diff/rspec/augmented_matcher.rb
@@ -31,7 +31,7 @@ def build_failure_message(negated:)
 
       def matcher_text_builder
         @_matcher_text_builder ||=
-          matcher_text_builder_class.new(matcher_text_builder_args)
+          matcher_text_builder_class.new(**matcher_text_builder_args)
       end
 
       def matcher_text_builder_class
diff --git a/lib/super_diff/rspec/matcher_text_builders/match.rb b/lib/super_diff/rspec/matcher_text_builders/match.rb
index 6c6ef8ce..7c8b8aae 100644
--- a/lib/super_diff/rspec/matcher_text_builders/match.rb
+++ b/lib/super_diff/rspec/matcher_text_builders/match.rb
@@ -3,7 +3,7 @@ module RSpec
     module MatcherTextBuilders
       class Match < Base
         def initialize(expected_captures:, **rest)
-          super(rest)
+          super(**rest)
           @expected_captures = expected_captures
         end
 
diff --git a/lib/super_diff/rspec/matcher_text_builders/respond_to.rb b/lib/super_diff/rspec/matcher_text_builders/respond_to.rb
index eb62a724..0dac37fd 100644
--- a/lib/super_diff/rspec/matcher_text_builders/respond_to.rb
+++ b/lib/super_diff/rspec/matcher_text_builders/respond_to.rb
@@ -9,7 +9,7 @@ def initialize(
           unlimited_arguments:,
           **rest
         )
-          super(rest)
+          super(**rest)
           @expected_arity = expected_arity
           @arbitrary_keywords = arbitrary_keywords
           @expected_keywords = expected_keywords
diff --git a/lib/super_diff/rspec/operational_sequencers/collection_containing_exactly.rb b/lib/super_diff/rspec/operational_sequencers/collection_containing_exactly.rb
index 58e1f097..55a86208 100644
--- a/lib/super_diff/rspec/operational_sequencers/collection_containing_exactly.rb
+++ b/lib/super_diff/rspec/operational_sequencers/collection_containing_exactly.rb
@@ -7,7 +7,7 @@ def self.applies_to?(expected, actual)
             actual.is_a?(::Array)
         end
 
-        def initialize(actual:, **rest)
+        def initialize(actual:, **)
           super
           populate_pairings_maximizer_in_expected_with(actual)
         end