Use the random_int function

app/Console/Commands/DemoMetricPointSeederCommand.php

@@ -72,7 +72,7 @@ class DemoMetricPointSeederCommand extends Command
 
             MetricPoint::create([
                 'metric_id'  => 1,
-                'value'      => rand(1, 10),
+                'value'      => random_int(1, 10),
                 'created_at' => $metricTime,
                 'updated_at' => $metricTime,
             ]);

app/Console/Commands/DemoSeederCommand.php

@@ -210,7 +210,7 @@ class DemoSeederCommand extends Command
 
             MetricPoint::create([
                 'metric_id'  => 1,
-                'value'      => rand(1, 10),
+                'value'      => random_int(1, 10),
                 'created_at' => $metricTime,
                 'updated_at' => $metricTime,
             ]);

database/factories/ModelFactory.php

@@ -62,7 +62,7 @@ $factory->define('CachetHQ\Cachet\Models\Metric', function ($faker) {
 $factory->define('CachetHQ\Cachet\Models\MetricPoint', function ($faker) {
     return [
         'metric_id' => 1,
-        'value'     => rand(1, 100),
+        'value'     => random_int(1, 100),
     ];
 });