diff --git a/requirements.txt b/requirements.txt
index 1d9fc63..3903995 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 requests
-cas-tools==0.0.1.dev42
+cas-tools==0.0.1.dev44
diff --git a/setup.py b/setup.py
index b3e94e6..0e0868c 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setup(
     name="tdta",
-    version="0.1.0.dev12",
+    version="0.1.0.dev13",
     description="The aim of this project is to provide taxonomy development tools custom actions.",
     long_description=README,
     long_description_content_type="text/markdown",
diff --git a/src/tdta/tdt_export.py b/src/tdta/tdt_export.py
index e1d090f..1f9ca6e 100644
--- a/src/tdta/tdt_export.py
+++ b/src/tdta/tdt_export.py
@@ -24,7 +24,7 @@ def export_cas_data(sqlite_db: str, output_file: str, dataset_cache_folder: str
     :param output_file: output json path
     :param dataset_cache_folder: anndata cache folder path
     """
-    cta = CellTypeAnnotation("", list())
+    cta = CellTypeAnnotation("", list(), "")
 
     cas_tables = get_table_names(sqlite_db)
     for table_name in cas_tables: