diff --git a/pyproject.toml b/pyproject.toml
index 6af7d4b..28056cc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "cosmap"
-version = "0.4.0"
+version = "0.4.1"
 description = ""
 authors = [{ name = "Patrick Wells", email = "patrick@astropatty.com" }]
 requires-python = ">=3.11,<3.14"
diff --git a/src/cosmap/dataset/plugins.py b/src/cosmap/dataset/plugins.py
index f8c4755..c00610f 100644
--- a/src/cosmap/dataset/plugins.py
+++ b/src/cosmap/dataset/plugins.py
@@ -18,7 +18,7 @@
 
 
 class heinleinPlugin(WorkerPlugin):
-    def __init__(self, dataset_name):
+    def __init__(self, dataset_name, **kwargs):
         self.dataset_name = dataset_name
 
     def setup(self, worker):