diff --git a/lib/active_model/serializer/concerns/attributes.rb b/lib/active_model/serializer/concerns/attributes.rb
index d1968d77e..6ee2732fd 100644
--- a/lib/active_model/serializer/concerns/attributes.rb
+++ b/lib/active_model/serializer/concerns/attributes.rb
@@ -66,7 +66,7 @@ def _attributes
         end
 
         # @api private
-        # maps attribute value to explict key name
+        # maps attribute value to explicit key name
         # @see Serializer::attribute
         # @see FragmentCache#fragment_serializer
         def _attributes_keys
diff --git a/test/action_controller/json_api/errors_test.rb b/test/action_controller/json_api/errors_test.rb
index dd1249f20..6da3c9ada 100644
--- a/test/action_controller/json_api/errors_test.rb
+++ b/test/action_controller/json_api/errors_test.rb
@@ -14,10 +14,10 @@ def test_active_model_with_multiple_errors
               { source: { pointer: '/data/attributes/id' }, detail: 'must be a uuid' }
             ]
           }.to_json
-          assert_equal json_reponse_body.to_json, expected_errors_object
+          assert_equal json_response_body.to_json, expected_errors_object
         end
 
-        def json_reponse_body
+        def json_response_body
           JSON.load(@response.body)
         end
 
diff --git a/test/action_controller/serialization_test.rb b/test/action_controller/serialization_test.rb
index e650cbfdb..dfd72b42e 100644
--- a/test/action_controller/serialization_test.rb
+++ b/test/action_controller/serialization_test.rb
@@ -456,7 +456,7 @@ def use_adapter?
         end
       end
 
-      def test_render_event_is_emmited
+      def test_render_event_is_emitted
         subscriber = ::ActiveSupport::Notifications.subscribe('render.active_model_serializers') do |name|
           @name = name
         end
diff --git a/test/active_model_serializers/json_pointer_test.rb b/test/active_model_serializers/json_pointer_test.rb
index 0c8cf58fc..60619ee6e 100644
--- a/test/active_model_serializers/json_pointer_test.rb
+++ b/test/active_model_serializers/json_pointer_test.rb
@@ -13,7 +13,7 @@ def test_primary_data_pointer
       assert_equal '/data', pointer
     end
 
-    def test_unkown_data_pointer
+    def test_unknown_data_pointer
       assert_raises(TypeError) do
         ActiveModelSerializers::JsonPointer.new(:unknown)
       end