diff --git a/lib/pages/analytics/services/range_of_aqi/fake_range_of_aqi_service.dart b/lib/pages/analytics/services/range_of_aqi/fake_range_of_aqi_service.dart
index 434826d8..328e4433 100644
--- a/lib/pages/analytics/services/range_of_aqi/fake_range_of_aqi_service.dart
+++ b/lib/pages/analytics/services/range_of_aqi/fake_range_of_aqi_service.dart
@@ -5,20 +5,22 @@ import 'package:syncrow_web/pages/analytics/services/range_of_aqi/range_of_aqi_s
 class FakeRangeOfAqiService implements RangeOfAqiService {
   @override
   Future<List<RangeOfAqi>> load(GetRangeOfAqiParam param) async {
+    final random = DateTime.now().millisecondsSinceEpoch;
+
     return List.generate(30, (index) {
       final date = DateTime(2025, 5, 1).add(Duration(days: index));
-      final min = (index * 8).toDouble();
-      final avg = min + 40;
-      final max = avg + 40;
 
-      final cappedMin = min > 301 ? 301.0 : min;
-      final cappedAvg = avg > 301 ? 301.0 : avg;
-      final cappedMax = max > 301 ? 301.0 : max;
+      final min = ((random + index * 17) % 200).toDouble();
+      final avgDelta = ((random + index * 23) % 50).toDouble() + 20;
+      final maxDelta = ((random + index * 31) % 50).toDouble() + 30;
+
+      final avg = (min + avgDelta).clamp(0.0, 301.0);
+      final max = (avg + maxDelta).clamp(0.0, 301.0);
 
       return RangeOfAqi(
-        min: cappedMin,
-        avg: cappedAvg,
-        max: cappedMax,
+        min: min,
+        avg: avg,
+        max: max,
         date: date,
       );
     });