diff --git a/aiohttp_pydantic/__init__.py b/aiohttp_pydantic/__init__.py
index 91b5e3c..e4c4db7 100644
--- a/aiohttp_pydantic/__init__.py
+++ b/aiohttp_pydantic/__init__.py
@@ -1,5 +1,5 @@
 from .view import PydanticView
 
-__version__ = "1.7.1"
+__version__ = "1.7.2"
 
 __all__ = ("PydanticView", "__version__")
diff --git a/aiohttp_pydantic/oas/view.py b/aiohttp_pydantic/oas/view.py
index b2e22af..4aab93f 100644
--- a/aiohttp_pydantic/oas/view.py
+++ b/aiohttp_pydantic/oas/view.py
@@ -44,7 +44,9 @@ class _OASResponseBuilder:
 
     def _handle_pydantic_base_model(self, obj):
         if is_pydantic_base_model(obj):
-            response_schema = obj.schema(ref_template="#/components/schemas/{model}")
+            response_schema = obj.schema(
+                ref_template="#/components/schemas/{model}"
+            ).copy()
             if def_sub_schemas := response_schema.pop("definitions", None):
                 self._oas.components.schemas.update(def_sub_schemas)
             return response_schema
@@ -104,8 +106,10 @@ def _add_http_method_to_oas(
         status_code_descriptions = {}
 
     if body_args:
-        body_schema = next(iter(body_args.values())).schema(
-            ref_template="#/components/schemas/{model}"
+        body_schema = (
+            next(iter(body_args.values()))
+            .schema(ref_template="#/components/schemas/{model}")
+            .copy()
         )
         if def_sub_schemas := body_schema.pop("definitions", None):
             oas.components.schemas.update(def_sub_schemas)
diff --git a/tests/test_oas/test_view.py b/tests/test_oas/test_view.py
index f8b233e..acdbe83 100644
--- a/tests/test_oas/test_view.py
+++ b/tests/test_oas/test_view.py
@@ -77,10 +77,19 @@ async def generated_oas(aiohttp_client, loop) -> web.Application:
     oas.setup(app)
 
     client = await aiohttp_client(app)
-    response = await client.get("/oas/spec")
-    assert response.status == 200
-    assert response.content_type == "application/json"
-    return await response.json()
+    response_1 = await client.get("/oas/spec")
+    assert response_1.content_type == "application/json"
+    assert response_1.status == 200
+    content_1 = await response_1.json()
+
+    # Reload the page to ensure that content is always the same
+    # note: pydantic can return a cached dict, if a view updates
+    # the dict the output will be incoherent
+    response_2 = await client.get("/oas/spec")
+    content_2 = await response_2.json()
+    assert content_1 == content_2
+
+    return content_2
 
 
 async def test_generated_oas_should_have_components_schemas(generated_oas):