diff --git a/dataconnect/service/mappers.py b/dataconnect/service/mappers.py
index f65e747..cd819ec 100644
--- a/dataconnect/service/mappers.py
+++ b/dataconnect/service/mappers.py
@@ -64,7 +64,7 @@ def resource_to_fetched_data(table: DataTable) -> pd.DataFrame:
 
     ipc_buffer = pa.BufferReader(table.ipc_bytes)
     with pa.ipc.open_stream(ipc_buffer) as reader:
-        return reader.read_all().to_pandas()
+        return reader.read_all().to_pandas(types_mapper=pd.ArrowDtype)
 
 
 def resource_to_dataset(resource: ResourceInfo) -> Dataset:
diff --git a/tests/test_get_datasets_paginated.py b/tests/test_get_datasets_paginated.py
index 235140e..f16d9cf 100644
--- a/tests/test_get_datasets_paginated.py
+++ b/tests/test_get_datasets_paginated.py
@@ -7,7 +7,6 @@
 
 import pytest
 
-from dataconnect.exceptions import ValidationError
 from dataconnect.models import Dataset, PaginatedResponse, Pagination
 from dataconnect.service.default import DefaultDataConnectService
 from dataconnect.transport.errors import TransportError
@@ -144,50 +143,6 @@ def test_builds_correct_request_body(self) -> None:
             "page_size": 10,
         }
 
-    def test_raises_validation_error_for_invalid_uuid(self) -> None:
-        transport = _FakeTransport(resources=[])
-        service = DefaultDataConnectService(transport)
-
-        with pytest.raises(ValidationError, match="study_environment_uuid must be a valid UUID"):
-            service.get_datasets(study_environment_uuid="not-a-uuid")  # type: ignore[arg-type]
-
-    def test_raises_validation_error_for_zero_uuid(self) -> None:
-        transport = _FakeTransport(resources=[])
-        service = DefaultDataConnectService(transport)
-
-        with pytest.raises(ValidationError, match="study_environment_uuid must not be empty"):
-            service.get_datasets(study_environment_uuid=UUID(int=0))
-
-    @pytest.mark.parametrize("page", [0, -1, -100])
-    def test_raises_validation_error_for_invalid_page(self, page: int) -> None:
-        transport = _FakeTransport(resources=[])
-        service = DefaultDataConnectService(transport)
-
-        with pytest.raises(ValidationError, match="page must be a positive integer"):
-            service.get_datasets(study_environment_uuid=_STUDY_ENV_UUID, page=page)
-
-    def test_raises_validation_error_for_non_int_page(self) -> None:
-        transport = _FakeTransport(resources=[])
-        service = DefaultDataConnectService(transport)
-
-        with pytest.raises(ValidationError, match="page must be a positive integer"):
-            service.get_datasets(study_environment_uuid=_STUDY_ENV_UUID, page="2")  # type: ignore[arg-type]
-
-    @pytest.mark.parametrize("page_size", [0, -1, -50])
-    def test_raises_validation_error_for_invalid_page_size(self, page_size: int) -> None:
-        transport = _FakeTransport(resources=[])
-        service = DefaultDataConnectService(transport)
-
-        with pytest.raises(ValidationError, match="page_size must be a positive integer"):
-            service.get_datasets(study_environment_uuid=_STUDY_ENV_UUID, page_size=page_size)
-
-    def test_raises_validation_error_for_non_int_page_size(self) -> None:
-        transport = _FakeTransport(resources=[])
-        service = DefaultDataConnectService(transport)
-
-        with pytest.raises(ValidationError, match="page_size must be a positive integer"):
-            service.get_datasets(study_environment_uuid=_STUDY_ENV_UUID, page_size="25")  # type: ignore[arg-type]
-
     def test_translates_transport_errors(self) -> None:
         transport = _FakeTransport(error=TransportError(error_code="CONN", message="cannot connect"))
         service = DefaultDataConnectService(transport)