diff --git a/tests/test_memory/test_factory.py b/tests/test_memory/test_factory.py
index 33d403c34..73fcbea3e 100644
--- a/tests/test_memory/test_factory.py
+++ b/tests/test_memory/test_factory.py
@@ -49,7 +49,7 @@ class TestMemoryConfig:
         config = MemoryConfig()
 
         assert config.store_backend == StoreBackend.SQLITE
-        assert config.vector_backend == VectorBackend.HNSW
+        assert config.vector_backend == VectorBackend.AUTO
         assert config.text_backend == TextBackend.FTS5
         assert config.embedder_backend == EmbedderBackend.LOCAL
         assert config.cache_enabled is True