diff --git a/src/crewai/memory/storage/llm_response_cache_storage.py b/src/crewai/memory/storage/llm_response_cache_storage.py
index 9a2e4cb25..3481f030d 100644
--- a/src/crewai/memory/storage/llm_response_cache_storage.py
+++ b/src/crewai/memory/storage/llm_response_cache_storage.py
@@ -23,7 +23,7 @@ class LLMResponseCacheStorage:
     ) -> None:
         self.db_path = db_path
         self._printer: Printer = Printer()
-        self._connection_pool = {}
+        self._connection_pool: Dict[int, sqlite3.Connection] = {}
         self._initialize_db()
 
     def _get_connection(self) -> sqlite3.Connection: