diff --git a/.github/workflows/test-runner.yml b/.github/workflows/test-runner.yml
index 75d06db..7c73a73 100644
--- a/.github/workflows/test-runner.yml
+++ b/.github/workflows/test-runner.yml
@@ -65,7 +65,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" "filament/support:^3.3" --no-interaction --no-update
+          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" --no-interaction --no-update
           composer update --${{ matrix.dependency-version }} --prefer-dist --no-progress --no-interaction
 
       - name: Run test suite
diff --git a/src/Models/Country.php b/src/Models/Country.php
index 4803e42..1203377 100644
--- a/src/Models/Country.php
+++ b/src/Models/Country.php
@@ -90,4 +90,18 @@ protected static function newFactory(): CountryFactory
     {
         return CountryFactory::new();
     }
+
+    /**
+     * Ensure numeric code is always stored as a 3-character, zero-padded string.
+     */
+    public function setNumCodeAttribute($value): void
+    {
+        if ($value === null || $value === '') {
+            $this->attributes['num_code'] = null;
+
+            return;
+        }
+
+        $this->attributes['num_code'] = str_pad((string) $value, 3, '0', STR_PAD_LEFT);
+    }
 }