diff --git a/src/Checks/ComposerOutdatedCheck.php b/src/Checks/ComposerOutdatedCheck.php
new file mode 100644
index 0000000..e2a8c98
--- /dev/null
+++ b/src/Checks/ComposerOutdatedCheck.php
@@ -0,0 +1,146 @@
+<?php
+
+namespace Vormkracht10\LaravelOK\Checks;
+
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Process;
+use Vormkracht10\LaravelOK\Checks\Base\Check;
+use Vormkracht10\LaravelOK\Checks\Base\Result;
+use Vormkracht10\LaravelOK\Enums\SemverLevel;
+
+class ComposerOutdatedCheck extends Check
+{
+    protected SemverLevel $globalLevel = SemverLevel::All;
+
+    protected Collection $packages;
+
+    protected array $versions;
+
+    public function __construct()
+    {
+        $this->packages = new Collection;
+    }
+
+    public function reportOnlyMajor(): static
+    {
+        $this->globalLevel = SemverLevel::Major;
+
+        return $this;
+    }
+
+    public function reportOnlyMinor(): static
+    {
+        $this->globalLevel = SemverLevel::Minor;
+
+        return $this;
+    }
+
+    /**
+     * @param  array<string, SemverLevel>  $versions
+     */
+    public function versions(array $versions): static
+    {
+        $this->versions = $versions;
+
+        return $this;
+    }
+
+    /**
+     * @param  array<int, string>  $packages
+     */
+    public function include(array $packages): static
+    {
+        $packages = collect($packages)->mapWithKeys(
+            fn ($package) => [$package => true],
+        );
+
+        $this->packages = $this->packages->merge($packages);
+
+        return $this;
+    }
+
+    /**
+     * @param  array<int, string>  $packages
+     */
+    public function exclude(array $packages): static
+    {
+        $packages = collect($packages)->mapWithKeys(
+            fn ($package) => [$package => false],
+        );
+
+        $this->packages = $this->packages->merge($packages);
+
+        return $this;
+    }
+
+    public function run(): Result
+    {
+        $result = Result::new();
+
+        $outdated = $this->getOutdated();
+
+        if (! $outdated) {
+            return $result->failed('Failed to get outdated packages using composer');
+        }
+
+        $this->packages = (
+            ($included = $this->packages->filter(fn ($include) => $include))->isEmpty()
+                ? $outdated->mapWithKeys(fn ($versions, $name) => [$name => true])
+                : $included
+        )->merge($this->packages);
+
+        $failed = collect();
+
+        foreach ($this->packages as $package => $include) {
+            if (! $include || ! isset($outdated[$package])) {
+                continue;
+            }
+
+            $actual = $outdated[$package]['status'];
+
+            $level = $this->versions[$package] ?? $this->globalLevel;
+
+            if ($actual !== $level && $level !== SemverLevel::All) {
+                continue;
+            }
+
+            $failed[$package] = $outdated[$package];
+        }
+
+        if (! $failed->isEmpty()) {
+            return $result->failed(<<<string
+            \nSome packages are not up-to-date:
+            \t{$failed->map(
+                fn ($versions, $package) => "{$package}: [current: {$versions['current']}] [latest: {$versions['latest']}]",
+            )->implode("\n\t")}
+            string);
+        }
+
+        return $result->ok('All packages are up-to-date');
+    }
+
+    protected function getOutdated(): Collection|false
+    {
+        $process = Process::run('composer outdated --format=json');
+
+        if (! $process->successful()) {
+            return false;
+        }
+
+        $data = json_decode(
+            $process->output(),
+            true,
+        );
+
+        return collect($data['installed'])
+            ->mapWithKeys(fn ($meta) => [$meta['name'] => [
+                'current' => $meta['version'],
+                'latest' => $meta['latest'],
+                'status' => match ($meta['latest-status']) {
+                    'semver-safe-update' => SemverLevel::Minor,
+                    'update-possible' => SemverLevel::Major,
+                    default => null,
+                },
+            ]]);
+    }
+}
diff --git a/src/Enums/SemverLevel.php b/src/Enums/SemverLevel.php
new file mode 100644
index 0000000..078ab09
--- /dev/null
+++ b/src/Enums/SemverLevel.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Vormkracht10\LaravelOK\Enums;
+
+enum SemverLevel: string
+{
+    case All = 'all';
+    case Major = 'major';
+    case Minor = 'minor';
+}