diff --git a/tests/ResourceSyncingTest.php b/tests/ResourceSyncingTest.php
index 6db7c4ca..44b4b4ce 100644
--- a/tests/ResourceSyncingTest.php
+++ b/tests/ResourceSyncingTest.php
@@ -579,7 +579,7 @@ class ResourceTenant extends Tenant
 {
     public function users()
     {
-        return $this->belongsToMany(CentralUser::class, 'tenant_users', 'tenant_id', 'global_user_id')
+        return $this->belongsToMany(CentralUser::class, 'tenant_users', 'tenant_id', 'global_user_id', 'id', 'global_id')
             ->using(TenantPivot::class);
     }
 }
@@ -594,7 +594,7 @@ class CentralUser extends Model implements SyncMaster
 
     public function tenants(): BelongsToMany
     {
-        return $this->belongsToMany(ResourceTenant::class, 'tenant_users', 'global_user_id', 'tenant_id')
+        return $this->belongsToMany(ResourceTenant::class, 'tenant_users', 'global_user_id', 'tenant_id', 'global_id')
             ->using(TenantPivot::class);
     }
 
diff --git a/tests/SingleDatabaseTenancyTest.php b/tests/SingleDatabaseTenancyTest.php
index 33a86fd3..b64478cc 100644
--- a/tests/SingleDatabaseTenancyTest.php
+++ b/tests/SingleDatabaseTenancyTest.php
@@ -9,7 +9,6 @@ use Illuminate\Database\QueryException;
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Support\Facades\Schema;
 use Illuminate\Support\Facades\Validator;
-use Illuminate\Validation\Rules\Unique;
 use Stancl\Tenancy\Database\Concerns\BelongsToPrimaryModel;
 use Stancl\Tenancy\Database\Concerns\BelongsToTenant;
 use Stancl\Tenancy\Database\Concerns\HasScopedValidationRules;
@@ -36,7 +35,7 @@ class SingleDatabaseTenancyTest extends TestCase
             $table->increments('id');
             $table->string('text');
 
-            $table->string('post_id');
+            $table->unsignedInteger('post_id');
 
             $table->foreign('post_id')->references('id')->on('posts')->onUpdate('cascade')->onDelete('cascade');
         });
@@ -236,6 +235,7 @@ class SingleDatabaseTenancyTest extends TestCase
     {
         BelongsToTenant::$tenantIdColumn = 'team_id';
 
+        Schema::drop('comments');
         Schema::drop('posts');
         Schema::create('posts', function (Blueprint $table) {
             $table->increments('id');
diff --git a/tests/TenantModelTest.php b/tests/TenantModelTest.php
index 44c262eb..d42db5c5 100644
--- a/tests/TenantModelTest.php
+++ b/tests/TenantModelTest.php
@@ -62,7 +62,7 @@ class TenantModelTest extends TestCase
         $this->assertSame(null, $tenant->data);
 
         // Low level test to assert database structure
-        $this->assertSame(json_encode(['foo' => 'bar']), DB::table('tenants')->where('id', $tenant->id)->first()->data);
+        $this->assertSame(['foo' => 'bar'], json_decode(DB::table('tenants')->where('id', $tenant->id)->first()->data, true));
         $this->assertSame(null, DB::table('tenants')->where('id', $tenant->id)->first()->foo ?? null);
 
         // Model has the correct structure when retrieved
@@ -105,6 +105,7 @@ class TenantModelTest extends TestCase
     /** @test */
     public function autoincrement_ids_are_supported()
     {
+        Schema::drop('domains');
         Schema::table('tenants', function (Blueprint $table) {
             $table->bigIncrements('id')->change();
         });
diff --git a/tests/TestCase.php b/tests/TestCase.php
index bb33da43..bbc42489 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Stancl\Tenancy\Tests;
 
 use Illuminate\Support\Facades\Redis;
+use PDO;
 use Stancl\Tenancy\Tests\Etc\Tenant;
 
 abstract class TestCase extends \Orchestra\Testbench\TestCase
@@ -56,9 +57,23 @@ abstract class TestCase extends \Orchestra\Testbench\TestCase
             'database.redis.default.host' => env('TENANCY_TEST_REDIS_HOST', '127.0.0.1'),
             'database.redis.options.prefix' => 'foo',
             'database.connections.central' => [
-                'driver' => 'sqlite',
-                'database' => database_path('central.sqlite'),
-                // 'database' => ':memory:',
+                'driver' => 'mysql',
+                'url' => env('DATABASE_URL'),
+                'host' => 'mysql',
+                'port' => env('DB_PORT', '3306'),
+                'database' => 'main',
+                'username' => env('DB_USERNAME', 'forge'),
+                'password' => env('DB_PASSWORD', ''),
+                'unix_socket' => env('DB_SOCKET', ''),
+                'charset' => 'utf8mb4',
+                'collation' => 'utf8mb4_unicode_ci',
+                'prefix' => '',
+                'prefix_indexes' => true,
+                'strict' => true,
+                'engine' => null,
+                'options' => extension_loaded('pdo_mysql') ? array_filter([
+                    PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
+                ]) : [],
             ],
             'database.connections.sqlite.database' => ':memory:',
             'database.connections.mysql.host' => env('TENANCY_TEST_MYSQL_HOST', '127.0.0.1'),