diff --git a/Tests/Swagger/ModelRegisterTest.php b/Tests/Swagger/ModelRegisterTest.php
new file mode 100644
index 0000000..42b476d
--- /dev/null
+++ b/Tests/Swagger/ModelRegisterTest.php
@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Swagger;
+
+use Doctrine\Common\Annotations\AnnotationReader;
+use EXSyst\Component\Swagger\Schema;
+use EXSyst\Component\Swagger\Swagger;
+use Nelmio\ApiDocBundle\Annotation\Model as ModelAnnotation;
+use Nelmio\ApiDocBundle\Model\Model;
+use Nelmio\ApiDocBundle\Model\ModelRegistry;
+use Nelmio\ApiDocBundle\ModelDescriber\ModelDescriberInterface;
+use Nelmio\ApiDocBundle\SwaggerPhp\ModelRegister;
+use PHPUnit\Framework\TestCase;
+use  Swagger\Analysis;
+use Swagger\Annotations as SWG;
+
+class ModelRegisterTest extends TestCase
+{
+    /**
+     * @group legacy
+     * @expectedDeprecation Using `@Model` implicitely in a `@SWG\Schema`, `@SWG\Items` or `@SWG\Property` annotation in %s. Use `ref=@Model()` instead.
+     */
+    public function testDeprecatedImplicitUseOfModel()
+    {
+        $api = new Swagger();
+        $registry = new ModelRegistry([new NullModelDescriber()], $api);
+        $modelRegister = new ModelRegister($registry);
+
+        $annotationsReader = new AnnotationReader();
+
+        $modelRegister->__invoke(new Analysis([$annotation = $annotationsReader->getPropertyAnnotation(
+            new \ReflectionProperty(Foo::class, 'bar'),
+            SWG\Property::class
+        )]));
+
+        $this->assertEquals(['items' => ['$ref' => '#/definitions/Foo']], json_decode(json_encode($annotation), true));
+    }
+}
+
+class Foo
+{
+    /**
+     * @SWG\Property(@ModelAnnotation(type=Foo::class))
+     */
+    private $bar;
+}
+
+class NullModelDescriber implements ModelDescriberInterface
+{
+    public function describe(Model $model, Schema $schema)
+    {
+    }
+
+    public function supports(Model $model): bool
+    {
+        return true;
+    }
+}
diff --git a/composer.json b/composer.json
index 9f063c3..ed3cbdc 100644
--- a/composer.json
+++ b/composer.json
@@ -56,7 +56,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "3.1.x-dev"
+            "dev-master": "3.2.x-dev"
         }
     }
 }