diff --git a/_dev_scripts/update_to_aas_core_meta_codegen_and_testgen.py b/_dev_scripts/update_to_aas_core_meta_codegen_and_testgen.py
index 12fd0199..9069b571 100644
--- a/_dev_scripts/update_to_aas_core_meta_codegen_and_testgen.py
+++ b/_dev_scripts/update_to_aas_core_meta_codegen_and_testgen.py
@@ -291,21 +291,9 @@ def _replace_test_data(
 
     print(f"Removing the test data from: {test_data_dir}")
 
-    for pth in [
-        test_data_dir / name
-        for name in (
-            "Descend",
-            "DescendOnce",
-            "DeserializationError",
-            "Json",
-            "VerificationError",
-            "Xml",
-            "XxxOrDefault",
-        )
-    ]:
-        if pth.exists():
-            print(f"Removing {pth} ...")
-            shutil.rmtree(pth)
+    for pth in [sub_pth for sub_pth in test_data_dir.iterdir() if sub_pth.is_dir()]:
+        print(f"Removing {pth} ...")
+        shutil.rmtree(pth)
 
     print(f"Copying the test data from: {aas_core_testgen_repo} ...")
 
@@ -621,12 +609,12 @@ def main() -> int:
         aas_core_codegen_revision=aas_core_codegen_revision,
     )
 
+    _replace_test_data(our_repo=our_repo, aas_core_testgen_repo=aas_core_testgen_repo)
+
     exit_code = _generate_test_code(our_repo=our_repo)
     if exit_code is not None:
         return exit_code
 
-    _replace_test_data(our_repo=our_repo, aas_core_testgen_repo=aas_core_testgen_repo)
-
     _reformat_code(our_repo=our_repo)
 
     _run_tests_and_rerecord(our_repo=our_repo)