diff --git a/cognee/infrastructure/databases/cache/get_cache_engine.py b/cognee/infrastructure/databases/cache/get_cache_engine.py
index 85a59bfde..b09ac8472 100644
--- a/cognee/infrastructure/databases/cache/get_cache_engine.py
+++ b/cognee/infrastructure/databases/cache/get_cache_engine.py
@@ -65,7 +65,7 @@ def create_cache_engine(
 
 def get_cache_engine(
     lock_key: Optional[str] = None, log_key: Optional[str] = None
-) -> CacheDBInterface:
+) -> Optional[CacheDBInterface]:
     """
     Returns a cache adapter instance using current context configuration.
     """