diff --git a/pyproject.toml b/pyproject.toml
index c030eda3..a6627eb1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,6 +60,7 @@ test = [
     "pytest >=6.2.5",
     "pytest-env>=0.6.2",
     "pytest-cov>=2.12.1",
+    "fileformats-medimage-extras",
 ]
 docs = [
     "packaging",
diff --git a/tests/test_task.py b/tests/test_task.py
index 6dbc5756..cc18b982 100644
--- a/tests/test_task.py
+++ b/tests/test_task.py
@@ -2,7 +2,6 @@
 import yaml
 from conftest import show_cli_trace
 import pytest
-import shutil
 import logging
 from nipype2pydra.cli import task as task_cli
 from nipype2pydra.utils import add_to_sys_path
@@ -18,7 +17,6 @@
     "trait_modified",
     "environ",
     "output_type",
-    "crop_list",
 ]
 
 
@@ -48,7 +46,7 @@ def test_task_conversion(task_spec_file, cli_runner, work_dir, gen_test_conftest
         pydra_module = import_module(output_module_path)
     pydra_task = getattr(pydra_module, task_spec["task_name"])
     nipype_interface = getattr(
-        import_module(task_spec["nipype_module"]), task_spec["task_name"]
+        import_module(task_spec["nipype_module"]), task_spec["nipype_name"]
     )
 
     nipype_trait_names = nipype_interface.input_spec().all_trait_names()