diff --git a/graphrag/cache/factory.py b/graphrag/cache/factory.py
index 331540260d..8ac329619e 100644
--- a/graphrag/cache/factory.py
+++ b/graphrag/cache/factory.py
@@ -68,7 +68,7 @@ def create_cache(cls, cache_type: str, kwargs: dict) -> PipelineCache:
     @classmethod
     def get_cache_types(cls) -> list[str]:
         """Get the registered cache implementations."""
-        return list(cls._registry.keys())
+        return [*cls._registry]
 
     @classmethod
     def is_supported_type(cls, cache_type: str) -> bool: