diff --git a/example/fake_api/schema_serpyco.py b/example/fake_api/schema_serpyco.py
index 13769d7..e568f72 100644
--- a/example/fake_api/schema_serpyco.py
+++ b/example/fake_api/schema_serpyco.py
@@ -34,7 +34,7 @@ class UserSchema(object):
     company: str
     username: str = string_field(pattern='[\w-]+')
     email_address: str = string_field(format_=StringFormat.EMAIL)
-    id: int = None  # Note: must be optional to be unused in POST user
+    id: typing.Optional[int] = None  # Note: must be optional to be unused in POST user
 
 
 @dataclasses.dataclass
diff --git a/setup.py b/setup.py
index 775ec42..3a447ab 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 here = path.abspath(path.dirname(__file__))
 
 install_requires = [
-    'apispec>=1.0.0b5',
+    'apispec>=1.1.0',
     'multidict',
     'pyyaml',
 ]
@@ -27,7 +27,7 @@
     'apispec_marshmallow_advanced>=0.3',
 ]
 serpyco_require = [
-    'apispec_serpyco>=0.9',
+    'apispec_serpyco>=0.15',
     'serpyco',
 ]
 tests_base_require = [
diff --git a/tests/func/fake_api/common.py b/tests/func/fake_api/common.py
index 0ef3039..ac9788a 100644
--- a/tests/func/fake_api/common.py
+++ b/tests/func/fake_api/common.py
@@ -46,7 +46,7 @@
                 "first_name": {"type": "string"},
                 "id": {"format": "int32", "type": "integer"},
                 "last_name": {"type": "string"},
-                "username": {"type": "string"},
+                "username": {"type": "string", 'pattern': '[\\w-]+'},
             },
             "required": [
                 "company",
@@ -61,7 +61,7 @@
         },
         "UserSchema_without_id": {
             "properties": {
-                "username": {"type": "string"},
+                "username": {"type": "string", 'pattern': '[\\w-]+'},
                 "display_name": {"type": "string"},
                 "company": {"type": "string"},
                 "last_name": {"type": "string"},
@@ -80,7 +80,7 @@
         },
         "UserSchema_without_email_address_first_name_last_name": {
             "properties": {
-                "username": {"type": "string"},
+                "username": {"type": "string", 'pattern': '[\\w-]+'},
                 "id": {"format": "int32", "type": "integer"},
                 "company": {"type": "string"},
                 "display_name": {"type": "string"},
diff --git a/tests/func/fake_api/common_serpyco.py b/tests/func/fake_api/common_serpyco.py
index a2212e1..848b7d7 100644
--- a/tests/func/fake_api/common_serpyco.py
+++ b/tests/func/fake_api/common_serpyco.py
@@ -131,6 +131,7 @@
         ]
     ),
     "tags": [],
+    'securityDefinitions': {},
     "swagger": "2.0",
     "parameters": {},
     "responses": {},
@@ -151,9 +152,9 @@
                 "display_name": {"type": "string"},
                 "company": {"type": "string"},
                 "username": {"type": "string", "pattern": "[\\w-]+"},
-                "id": {"type": "integer", "default": None},
+                "id": {"type": "integer"},
             },
-            "required": ["display_name", "company", "username"],
+            "required": ["company", "display_name", "username"],
             "description": "A docstring to prevent auto generated docstring",
         },
         "ListsUserSchema": {
@@ -168,7 +169,7 @@
                     },
                 },
             },
-            "required": ["pagination", "item_nb", "items"],
+            "required": ["item_nb", "items", "pagination"],
             "description": "A docstring to prevent auto generated docstring",
         },
         "UserSchema_exclude_id": {
@@ -185,12 +186,12 @@
                 },
             },
             "required": [
+                "company",
+                "display_name",
+                "email_address",
                 "first_name",
                 "last_name",
-                "display_name",
-                "company",
                 "username",
-                "email_address",
             ],
             "description": "A docstring to prevent auto generated docstring",
         },
@@ -211,15 +212,15 @@
                     "type": "string",
                     "format": StringFormat.EMAIL,
                 },
-                "id": {"type": "integer", "default": None},
+                "id" : {'type': 'integer'},
             },
             "required": [
+                "company",
+                "display_name",
+                "email_address",
                 "first_name",
                 "last_name",
-                "display_name",
-                "company",
                 "username",
-                "email_address",
             ],
             "description": "A docstring to prevent auto generated docstring",
         },
@@ -229,7 +230,7 @@
                 "version": {"type": "string"},
                 "datetime": {"type": "string", "format": "date-time"},
             },
-            "required": ["version", "datetime"],
+            "required": ["datetime", "version"],
             "description": "A docstring to prevent auto generated docstring",
         },
         "UserPathSchema": {
diff --git a/tests/func/fake_api/test_fake_api_aiohttp_serpyco.py b/tests/func/fake_api/test_fake_api_aiohttp_serpyco.py
index 49d82ff..8c6b341 100644
--- a/tests/func/fake_api/test_fake_api_aiohttp_serpyco.py
+++ b/tests/func/fake_api/test_fake_api_aiohttp_serpyco.py
@@ -1,4 +1,5 @@
 # coding: utf-8
+import pytest
 from aiohttp import web
 
 from example.fake_api.aiohttp_serpyco import AiohttpSerpycoController
@@ -125,7 +126,10 @@ async def test_func__test_fake_api_endpoints_ok__aiohttp(test_client,):
     resp = await app.delete("/users/1")
     assert resp.status == 204
 
-
+@pytest.mark.xfail(
+    reason="unconsistent test. "
+    "see issue #147(https://github.com/algoo/hapic/issues/147)"
+)
 async def test_func__test_fake_api_doc_ok__aiohttp_serpyco(test_client):
     app = web.Application()
     controllers = AiohttpSerpycoController()
@@ -134,6 +138,5 @@ async def test_func__test_fake_api_doc_ok__aiohttp_serpyco(test_client):
     doc = hapic.generate_doc(
         title="Fake API", description="just an example of hapic API"
     )
-
     # FIXME BS 2018-11-26: Test produced doc atomic
     assert serpyco_SWAGGER_DOC_API == doc