diff --git a/CHANGELOG.md b/CHANGELOG.md
index c552007..0ab032a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## 0.5.0 (2022-07-03)
+
+- Implement missing logic for `ObjectType.__fields_args__`
+
+
 ## 0.4.0 (2022-05-04)
 
 - Split logic from `BaseType` into `DefinitionType` and `BindableType`.
diff --git a/ariadne_graphql_modules/object_type.py b/ariadne_graphql_modules/object_type.py
index cfde52d..9ec6c1c 100644
--- a/ariadne_graphql_modules/object_type.py
+++ b/ariadne_graphql_modules/object_type.py
@@ -118,3 +118,9 @@ def __bind_to_schema__(cls, schema):
 
         for field_name, field_resolver in cls.resolvers.items():
             graphql_type.fields[field_name].resolve = field_resolver
+
+        if cls.__fields_args__:
+            for field_name, field_args_mappings in cls.__fields_args__.items():
+                field_args = graphql_type.fields[field_name].args
+                for arg_name, arg_out_name in field_args_mappings.items():
+                    field_args[arg_name].out_name = arg_out_name
diff --git a/setup.py b/setup.py
index 5521fff..f23b655 100755
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@
     long_description=README,
     long_description_content_type="text/markdown",
     license="BSD",
-    version="0.4.0",
+    version="0.5.0",
     url="https://github.com/mirumee/ariadne-graphql-modules",
     packages=["ariadne_graphql_modules"],
     include_package_data=True,
diff --git a/tests/test_object_type.py b/tests/test_object_type.py
index 3d8f5fe..b9ca048 100644
--- a/tests/test_object_type.py
+++ b/tests/test_object_type.py
@@ -345,12 +345,15 @@ class QueryType(ObjectType):
         other: String!
         firstField: String!
         secondField: String!
+        fieldWithArg(someArg: String): String!
     }
     """
     __aliases__ = {
         "firstField": "first_field",
         "secondField": "second_field",
+        "fieldWithArg": "field_with_arg",
     }
+    __fields_args__ = {"fieldWithArg": {"someArg": "some_arg"}}
 
     @staticmethod
     def resolve_other(*_):
@@ -360,6 +363,10 @@ def resolve_other(*_):
     def resolve_second_field(obj, *_):
         return "Obj: %s" % obj["secondField"]
 
+    @staticmethod
+    def resolve_field_with_arg(*_, some_arg):
+        return some_arg
+
 
 schema = make_executable_schema(QueryType)
 
@@ -384,3 +391,8 @@ def test_object_resolves_field_with_aliased_default_resolver():
 def test_object_resolves_field_with_aliased_custom_resolver():
     result = graphql_sync(schema, "{ secondField }", root_value={"secondField": "Hey!"})
     assert result.data["secondField"] == "Obj: Hey!"
+
+
+def test_object_resolves_field_with_arg_out_name_customized():
+    result = graphql_sync(schema, '{ fieldWithArg(someArg: "test") }')
+    assert result.data["fieldWithArg"] == "test"