diff -Nur a/spec/support/unit/active_record/create_table.rb b/spec/support/unit/active_record/create_table.rb
--- a/spec/support/unit/active_record/create_table.rb	2022-03-02 15:43:54.402107119 +0800
+++ b/spec/support/unit/active_record/create_table.rb	2022-03-02 15:47:54.230150787 +0800
@@ -47,7 +47,7 @@
           column_options = {}
         end
 
-        table.column(column_name, column_type, column_options)
+        table.column(column_name, column_type, **column_options)
       end
     end
   end
diff -Nur a/spec/support/unit/helpers/model_builder.rb b/spec/support/unit/helpers/model_builder.rb
--- a/spec/support/unit/helpers/model_builder.rb	2022-03-02 15:43:54.410107254 +0800
+++ b/spec/support/unit/helpers/model_builder.rb	2022-03-02 15:47:54.230150787 +0800
@@ -39,7 +39,7 @@
 
         begin
           connection.execute("DROP TABLE IF EXISTS #{table_name}")
-          connection.create_table(table_name, options, &block)
+          connection.create_table(table_name, **options, &block)
           created_tables << table_name
           connection
         rescue Exception => e
diff -Nur a/spec/unit/shoulda/matchers/active_model/validate_inclusion_of_matcher_spec.rb b/spec/unit/shoulda/matchers/active_model/validate_inclusion_of_matcher_spec.rb
--- a/spec/unit/shoulda/matchers/active_model/validate_inclusion_of_matcher_spec.rb	2022-03-02 15:43:54.634111031 +0800
+++ b/spec/unit/shoulda/matchers/active_model/validate_inclusion_of_matcher_spec.rb	2022-03-02 15:55:07.113449499 +0800
@@ -40,7 +40,7 @@
 
       def build_object(options = {}, &block)
         build_object_with_generic_attribute(
-          options.merge(column_type: :integer, value: 1),
+          **options.merge(column_type: :integer, value: 1),
           &block
         )
       end
@@ -64,7 +64,7 @@
 
       def build_object(options = {}, &block)
         build_object_with_generic_attribute(
-          options.merge(
+          **options.merge(
             column_type: :integer,
             column_options: { limit: 2 },
             value: 1
@@ -90,7 +90,7 @@
 
       def build_object(options = {}, &block)
         build_object_with_generic_attribute(
-          options.merge(column_type: :float, value: 1.0),
+          **options.merge(column_type: :float, value: 1.0),
           &block
         )
       end
@@ -118,7 +118,7 @@
 
       def build_object(options = {}, &block)
         build_object_with_generic_attribute(
-          options.merge(column_type: :decimal, value: BigDecimal('1.0')),
+          **options.merge(column_type: :decimal, value: BigDecimal('1.0')),
           &block
         )
       end
@@ -149,7 +149,7 @@
 
       define_method :build_object do |options = {}, &block|
         build_object_with_generic_attribute(
-          options.merge(column_type: :date, value: today),
+          **options.merge(column_type: :date, value: today),
           &block
         )
       end
@@ -177,7 +177,7 @@
 
       define_method :build_object do |options = {}, &block|
         build_object_with_generic_attribute(
-          options.merge(column_type: :datetime, value: now),
+          **options.merge(column_type: :datetime, value: now),
           &block
         )
       end
@@ -204,7 +204,7 @@
 
       define_method :build_object do |options = {}, &block|
         build_object_with_generic_attribute(
-          options.merge(column_type: :time, value: default_time),
+          **options.merge(column_type: :time, value: default_time),
           &block
         )
       end
@@ -225,7 +225,7 @@
 
       def build_object(options = {}, &block)
         build_object_with_generic_attribute(
-          options.merge(column_type: :string),
+          **options.merge(column_type: :string),
           &block
         )
       end
@@ -731,7 +731,7 @@
 
       define_method :build_object do |options = {}, &block|
         build_object_with_generic_attribute(
-          options.merge(column_type: :timestamp, value: now),
+          **options.merge(column_type: :timestamp, value: now),
           &block
         )
       end
@@ -772,7 +772,7 @@
         end
 
         def build_object(options = {}, &block)
-          super(options.merge(column_options: { null: true }, value: true))
+          super(**options.merge(column_options: { null: true }, value: true))
         end
       end
 
@@ -792,13 +792,13 @@
         end
 
         def build_object(options = {}, &block)
-          super(options.merge(column_options: { null: false }))
+          super(**options.merge(column_options: { null: false }))
         end
       end
 
       def build_object(options = {}, &block)
         build_object_with_generic_attribute(
-          options.merge(column_type: :boolean),
+          **options.merge(column_type: :boolean),
           &block
         )
       end
@@ -820,7 +820,7 @@
       include_context 'against a boolean attribute for true and false'
 
       def build_object(options = {}, &block)
-        build_object_with_generic_attribute(options.merge(value: true))
+        build_object_with_generic_attribute(**options.merge(value: true))
       end
     end
 
@@ -828,7 +828,7 @@
       include_context 'against a boolean attribute for true and false'
 
       def build_object(options = {}, &block)
-        build_object_with_generic_attribute(options.merge(value: false))
+        build_object_with_generic_attribute(**options.merge(value: false))
       end
     end
 
diff -Nur a/spec/unit/shoulda/matchers/active_record/association_matcher_spec.rb b/spec/unit/shoulda/matchers/active_record/association_matcher_spec.rb
--- a/spec/unit/shoulda/matchers/active_record/association_matcher_spec.rb	2022-03-02 15:43:54.630110963 +0800
+++ b/spec/unit/shoulda/matchers/active_record/association_matcher_spec.rb	2022-03-02 15:59:12.837592578 +0800
@@ -282,13 +282,13 @@
     def belonging_to_parent(options = {})
       define_model :parent
       define_model :child, parent_id: :integer do
-        belongs_to :parent, options
+        belongs_to :parent, **options
       end.new
     end
 
     def belonging_to_non_existent_class(model_name, assoc_name, options = {})
       define_model model_name, "#{assoc_name}_id" => :integer do
-        belongs_to assoc_name, options
+        belongs_to assoc_name, **options
       end.new
     end
   end
@@ -575,14 +575,14 @@
           order = options.delete(:order)
           define_association_with_order(model, :has_many, :children, order, options)
         else
-          model.has_many :children, options
+          model.has_many :children, **options
         end
       end.new
     end
 
     def having_many_non_existent_class(model_name, assoc_name, options = {})
       define_model model_name do
-        has_many assoc_name, options
+        has_many assoc_name, **options
       end.new
     end
   end
@@ -833,14 +833,14 @@
           order = options.delete(:order)
           define_association_with_order(model, :has_one, :detail, order, options)
         else
-          model.has_one :detail, options
+          model.has_one :detail, **options
         end
       end.new
     end
 
     def having_one_non_existent(model_name, assoc_name, options = {})
       define_model model_name do
-        has_one assoc_name, options
+        has_one assoc_name, **options
       end.new
     end
   end
@@ -1202,33 +1202,17 @@
 
     def having_and_belonging_to_many_non_existent_class(model_name, assoc_name, options = {})
       define_model model_name do
-        has_and_belongs_to_many assoc_name, options
+        has_and_belongs_to_many assoc_name, **options
       end.new
     end
   end
 
   def define_association_with_conditions(model, macro, name, conditions, other_options={})
-    args = []
-    options = {}
-    if active_record_supports_relations?
-      args << proc { where(conditions) }
-    else
-      options[:conditions] = conditions
-    end
-    args << options
-    model.__send__(macro, name, *args)
+    model.__send__(macro, name, proc { where(conditions) }, **{})
   end
 
   def define_association_with_order(model, macro, name, order, other_options={})
-    args = []
-    options = {}
-    if active_record_supports_relations?
-      args << proc { order(order) }
-    else
-      options[:order] = order
-    end
-    args << options
-    model.__send__(macro, name, *args)
+    model.__send__(macro, name, proc { order(order) }, **{})
   end
 
   def dependent_options
diff -Nur a/spec/unit/shoulda/matchers/active_record/have_db_column_matcher_spec.rb b/spec/unit/shoulda/matchers/active_record/have_db_column_matcher_spec.rb
--- a/spec/unit/shoulda/matchers/active_record/have_db_column_matcher_spec.rb	2022-03-02 15:43:54.434107659 +0800
+++ b/spec/unit/shoulda/matchers/active_record/have_db_column_matcher_spec.rb	2022-03-02 15:47:54.230150787 +0800
@@ -104,7 +104,7 @@
 
   def with_table(column_name, column_type, options)
     create_table 'employees' do |table|
-      table.__send__(column_type, column_name, options)
+      table.__send__(column_type, column_name, **options)
     end
     define_model_class('Employee').new
   end