diff --git a/tests/test_settings.py b/tests/test_settings.py
new file mode 100644
index 0000000..48949de
--- /dev/null
+++ b/tests/test_settings.py
@@ -0,0 +1,10 @@
+from app.settings import Settings
+
+
+def test_api_bootstrapper_config_reads_instance_not_global() -> None:
+    custom = Settings(service_name="custom-service", service_version="9.9.9")
+
+    config = custom.api_bootstrapper_config
+
+    assert config.service_name == "custom-service"
+    assert config.service_version == "9.9.9"