diff --git a/tests/conftest.py b/tests/conftest.py
index 7b38747..8e04955 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -217,3 +217,35 @@ def render(
 @pytest.fixture
 def concrete_smart_tree():
     return ConcreteSmartTree()
+
+
+def pytest_collection_modifyitems(session, config, items):
+
+    module_order = [
+        "tests/test__criterion.py",
+        "tests/test__repr_tree_node.py",
+        "tests/column_splitter/test__base_column_splitter.py",
+        "tests/column_splitter/test__num_column_splitter.py",
+        "tests/column_splitter/test__cat_column_splitter.py",
+        "tests/column_splitter/test__rank_column_splitter.py",
+        "tests/test__node_splitter.py",
+        "tests/decision_tree/base/test__check_params.py",
+        "tests/decision_tree/base/test__get_set_params.py",
+        "tests/decision_tree/base/test__check_data.py",
+        "tests/decision_tree/base/test__base_not_fitted.py",
+        "tests/decision_tree/classifier/test__repr_tree.py",
+        "tests/decision_tree/classifier/test__classifier_not_fitted.py",
+        "tests/decision_tree/classifier/test__fit_predict.py",
+        "tests/test__renderer.py",
+    ]
+
+    def get_priority(item):
+
+        filepath = item.fspath.relto(session.fspath).replace("\\", "/")
+
+        if filepath in module_order:
+            return module_order.index(filepath)
+        else:
+            return len(module_order)
+
+    items.sort(key=get_priority)