diff --git a/lib/src/view/database_operator.dart b/lib/src/view/database_operator.dart
index 5cf1f2c..f5fb3c3 100644
--- a/lib/src/view/database_operator.dart
+++ b/lib/src/view/database_operator.dart
@@ -73,6 +73,12 @@ class _DatabaseOperatorState extends State<DatabaseOperator> {
     });
   }
 
+  @override
+  void dispose() {
+    widget.database.close();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Column(