diff --git a/ecs/jskult-webapp/src/db/database.py b/ecs/jskult-webapp/src/db/database.py
index c639a82a..85759f96 100644
--- a/ecs/jskult-webapp/src/db/database.py
+++ b/ecs/jskult-webapp/src/db/database.py
@@ -77,7 +77,10 @@ class Database:
         Raises:
             DBException: 接続失敗
         """
-        self.__connection = self.__engine.connect()
+        try:
+            self.__connection = self.__engine.connect()
+        except Exception as e:
+            raise DBException(e)
 
     def execute_select(self, select_query: str, parameters=None) -> list[dict]:
         """SELECTクエリを実行します。