diff --git a/lib/ui/about.dart b/lib/ui/about.dart
index 8b34504..6fec8ad 100644
--- a/lib/ui/about.dart
+++ b/lib/ui/about.dart
@@ -21,6 +21,7 @@ class AboutButton extends StatelessWidget {
         onPressed: () {
           showCupertinoDialog(
               context: context,
+              barrierDismissible: true,
               builder: (BuildContext context) => AboutDialog());
         },
         icon: Icon(