diff --git a/pyproject.toml b/pyproject.toml
index 4da5e46..671704b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "numpy",
     "typer",
     "einops",
-    "napari",
+    "mrcfile",
 ]
 
 # https://peps.python.org/pep-0621/#dependencies-optional-dependencies
diff --git a/src/ttmask/__init__.py b/src/ttmask/__init__.py
index 5e27151..1128bf4 100644
--- a/src/ttmask/__init__.py
+++ b/src/ttmask/__init__.py
@@ -11,5 +11,4 @@
 
 from ._cli import cli
 from .sphere import sphere
-from .test import test