diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 08aa00a..9fa6749 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [8.0, 8.1, 8.2, 8.3]
+        php: [8.1, 8.2, 8.3]
         laravel: ['9.*', '10.*', '11.*']
         stability: [prefer-stable]
         include:
@@ -28,10 +28,6 @@ jobs:
         exclude:
           - laravel: 10.*
             php: 8.3
-          - laravel: 10.*
-            php: 8.0
-          - laravel: 11.*
-            php: 8.0
           - laravel: 11.*
             php: 8.1
 
diff --git a/composer.json b/composer.json
index 8155a4b..4faf664 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "spatie/laravel-package-tools": "^1.13.6",
         "illuminate/contracts": "^9.0|^10.0|^11.0"
     },
diff --git a/src/Models/Concerns/HasFlags.php b/src/Models/Concerns/HasFlags.php
index 416afea..0573b41 100644
--- a/src/Models/Concerns/HasFlags.php
+++ b/src/Models/Concerns/HasFlags.php
@@ -2,6 +2,7 @@
 
 namespace Spatie\ModelFlags\Models\Concerns;
 
+use BackedEnum;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\MorphMany;
@@ -18,48 +19,57 @@ public static function bootHasFlags()
         });
     }
 
+    protected function enumValue(string|BackedEnum $value): string
+    {
+        if (is_string($value)) {
+            return $value;
+        }
+
+        return (string) $value->value;
+    }
+
     public function flags(): MorphMany
     {
         return $this->morphMany(config('model-flags.flag_model'), 'flaggable');
     }
 
-    public function hasFlag(string $name): bool
+    public function hasFlag(string|BackedEnum $name): bool
     {
         return $this
             ->flags()
-            ->where('name', $name)
+            ->where('name', $this->enumValue($name))
             ->exists();
     }
 
-    public function flag($name): self
+    public function flag(string|BackedEnum $name): self
     {
-        $this->flags()->firstOrCreate(['name' => $name])->touch();
+        $this->flags()->firstOrCreate(['name' => $this->enumValue($name)])->touch();
 
         return $this;
     }
 
-    public function unflag(string $name): self
+    public function unflag(string|BackedEnum $name): self
     {
-        $this->flags()->where('name', $name)->delete();
+        $this->flags()->where('name', $this->enumValue($name))->delete();
 
         return $this;
     }
 
-    public function scopeFlagged(Builder $query, string $name): void
+    public function scopeFlagged(Builder $query, string|BackedEnum $name): void
     {
         $query
             ->whereHas(
                 'flags',
-                fn (Builder $query) => $query->where('name', $name)
+                fn (Builder $query) => $query->where('name', $this->enumValue($name))
             );
     }
 
-    public function scopeNotFlagged(Builder $query, string $name): void
+    public function scopeNotFlagged(Builder $query, string|BackedEnum $name): void
     {
         $query
             ->doesntHave(
                 'flags',
-                callback: fn (Builder $query) => $query->where('name', $name)
+                callback: fn (Builder $query) => $query->where('name', $this->enumValue($name))
             );
     }
 
@@ -73,17 +83,17 @@ public function flagNames(): array
             ->toArray();
     }
 
-    public function latestFlag(string $name = null): ?Flag
+    public function latestFlag(string|BackedEnum|null $name = null): ?Flag
     {
         return $this
             ->flags()
-            ->when($name, fn (Builder $query) => $query->where('name', $name))
+            ->when($name, fn (Builder $query) => $query->where('name', $this->enumValue($name)))
             ->orderByDesc('updated_at')->orderByDesc('id')
             ->first();
     }
 
-    public function lastFlaggedAt(string $name): ?Carbon
+    public function lastFlaggedAt(string|BackedEnum $name): ?Carbon
     {
-        return $this->latestFlag($name)?->updated_at;
+        return $this->latestFlag($this->enumValue($name))?->updated_at;
     }
 }
diff --git a/tests/Datasets/Flags.php b/tests/Datasets/Flags.php
new file mode 100644
index 0000000..b122449
--- /dev/null
+++ b/tests/Datasets/Flags.php
@@ -0,0 +1,8 @@
+<?php
+
+use Spatie\ModelFlags\Tests\TestSupport\TestBackedEnum;
+
+dataset('flags', [
+    'a string' => 'flag-a',
+    'a backed enum' => TestBackedEnum::test_case,
+]);
diff --git a/tests/HasFlagsTest.php b/tests/HasFlagsTest.php
index 09f8db3..4e540df 100644
--- a/tests/HasFlagsTest.php
+++ b/tests/HasFlagsTest.php
@@ -10,28 +10,28 @@
     $this->otherModel = TestModel::create();
 });
 
-it('can add a flag to a model', function () {
-    expect($this->model->hasFlag('flag-a'))->toBeFalse();
+it('can add a flag to a model', function (string|BackedEnum $flag) {
+    expect($this->model->hasFlag($flag))->toBeFalse();
 
-    $this->model->flag('flag-a');
+    $this->model->flag($flag);
 
-    expect($this->model->hasFlag('flag-a'))->toBeTrue();
+    expect($this->model->hasFlag($flag))->toBeTrue();
     expect($this->model->hasFlag('flag-B'))->toBeFalse();
-    expect($this->otherModel->hasFlag('flag-a'))->toBeFalse();
-});
+    expect($this->otherModel->hasFlag($flag))->toBeFalse();
+})->with('flags');
 
-it('can unflag a model', function () {
-    $this->model->unflag('flag-a');
+it('can unflag a model', function (string|BackedEnum $flag) {
+    $this->model->unflag($flag);
 
-    $this->model->flag('flag-a');
+    $this->model->flag($flag);
     $this->model->flag('flag-b');
-    expect($this->model->hasFlag('flag-a'))->toBeTrue();
+    expect($this->model->hasFlag($flag))->toBeTrue();
 
-    $this->model->unflag('flag-a');
+    $this->model->unflag($flag);
 
-    expect($this->model->hasFlag('flag-a'))->toBeFalse();
+    expect($this->model->hasFlag($flag))->toBeFalse();
     expect($this->model->hasFlag('flag-b'))->toBeTrue();
-});
+})->with('flags');
 
 it('can get the flags from a model', function () {
     $this->model
diff --git a/tests/TestSupport/TestBackedEnum.php b/tests/TestSupport/TestBackedEnum.php
new file mode 100644
index 0000000..b6d1885
--- /dev/null
+++ b/tests/TestSupport/TestBackedEnum.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Spatie\ModelFlags\Tests\TestSupport;
+
+enum TestBackedEnum: string
+{
+    case test_case = 'test-flag';
+}