diff --git a/graphene_pydantic/converters.py b/graphene_pydantic/converters.py
index 1e3297c..d5eeb35 100644
--- a/graphene_pydantic/converters.py
+++ b/graphene_pydantic/converters.py
@@ -7,6 +7,7 @@
 import sys
 import typing as T
 import uuid
+from types import GenericAlias
 from typing import Type, get_origin
 
 import graphene
@@ -238,7 +239,11 @@ def find_graphene_type(
         return registry.get_type_for_model(type_)
     elif registry and (
         isinstance(type_, BaseModel)
-        or (inspect.isclass(type_) and issubclass(type_, BaseModel))
+        or (
+            inspect.isclass(type_)
+            and not isinstance(type_, GenericAlias)
+            and issubclass(type_, BaseModel)
+        )
     ):
         # If it's a Pydantic model that hasn't yet been wrapped with a ObjectType,
         # we can put a placeholder in and request that `resolve_placeholders()`
diff --git a/noxfile.py b/noxfile.py
index 1f6cd29..8021922 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -5,16 +5,30 @@
 @session
 @parametrize(
     "pydantic",
-    ("2.0", "2.1", "2.2", "2.3", "2.4"),
+    (
+        (2, 0),
+        (2, 1),
+        (2, 2),
+        (2, 3),
+        (2, 4),
+        (2, 5),
+        (2, 6),
+        (2, 7),
+        (2, 8),
+        (2, 9),
+        (2, 10),
+    ),
 )
-@parametrize("graphene", ("2.1.8", "2.1.9", "3.0", "3.1", "3.2", "3.3"))
+@parametrize("graphene", ("2.1.8", "2.1.9", "3.0", "3.1", "3.2", "3.3", "3.4"))
 def tests(session, pydantic, graphene):
-    if sys.version_info > (3, 10) and pydantic in ("1.7", "1.8"):
+    if sys.version_info > (3, 10) and pydantic in ((1, 7), (1, 8)):
         return session.skip()
     if sys.version_info > (3, 10) and graphene <= "3":
-        # Graphene 2.x doesn't support Python 3.11
         return session.skip()
-    session.install(f"pydantic=={pydantic}")
+    if sys.version_info > (3, 11) and pydantic < (2, 9):
+        return session.skip()
+    pydantic_version_string = ".".join([str(n) for n in pydantic])
+    session.install(f"pydantic=={pydantic_version_string}")
     session.install(f"graphene=={graphene}")
     session.install("pytest", "pytest-cov", ".")
     session.run(
diff --git a/poetry.lock b/poetry.lock
index 0f190d0..0245143 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -819,5 +819,5 @@ test = ["covdefaults (>=2.3)", "coverage (>=7.2.7)", "coverage-enable-subprocess
 
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.7"
+python-versions = "^3.8"
 content-hash = "8f050cd6fce164a7e7f5999ecacd74720ec5b9c6c70d09c2d7e3bcf9349b0330"
diff --git a/tests/test_converters.py b/tests/test_converters.py
index 6c18450..fbb09b8 100644
--- a/tests/test_converters.py
+++ b/tests/test_converters.py
@@ -154,6 +154,10 @@ def test_iterables():
     field = _convert_field_from_spec("attr", (T.List[int], [1, 2]))
     assert isinstance(field.type.of_type, graphene.types.List)
 
+    if sys.version_info >= (3, 9):
+        field = _convert_field_from_spec("attr", (list[int], [1, 2]))
+        assert isinstance(field.type.of_type, graphene.types.List)
+
     field = _convert_field_from_spec("attr", (list, [1, 2]))
     assert field.type.of_type == graphene.types.List