diff --git a/graphene_pydantic/inputobjecttype.py b/graphene_pydantic/inputobjecttype.py
index 95f444d..c7d8a5e 100644
--- a/graphene_pydantic/inputobjecttype.py
+++ b/graphene_pydantic/inputobjecttype.py
@@ -149,8 +149,6 @@ def resolve_placeholders(cls):
                     model=target_type.model,
                 )
                 fields_to_update[name] = graphene_field
-                meta.registry.register_object_field(
-                    cls, name, pydantic_field, model=target_type.model
-                )
+                meta.registry.register_object_field(cls, name, pydantic_field)
         # update the graphene side of things
         meta.fields.update(fields_to_update)
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/tests/test_registry.py b/tests/test_registry.py
index b8c875f..77ee7d7 100644
--- a/tests/test_registry.py
+++ b/tests/test_registry.py
@@ -58,3 +58,20 @@ def test_register_object_field_and_get_for_graphene_field():
     field = r.get_object_field_for_graphene_field(GraphFoo, "name")
     assert field is not None
     assert field.annotation == str
+
+
+def test_register_object_field_nested_model():
+    """https://github.com/graphql-python/graphene-pydantic/issues/104"""
+
+    class A(BaseModel):
+        x: str | None = None
+        y: list["A"] | None = None
+
+    class P_A(PydanticInputObjectType):
+        class Meta:
+            model = A
+
+    try:
+        P_A.resolve_placeholders()
+    except TypeError as e:
+        assert False, f"'10 / 5' raised an exception: {e}"