diff --git a/Entity/Content.php b/Entity/Content.php
index 508fd88..0a61838 100644
--- a/Entity/Content.php
+++ b/Entity/Content.php
@@ -32,7 +32,7 @@ class Content
      */
     private $parameters;
     /**
-     * @var string
+     * @var string|null
      *
      * @ORM\Column(name="filtered_parameters", type="text", nullable=true)
      */
@@ -96,10 +96,11 @@ public function getFilteredParameters(): string
     {
         return $this->filteredParameters;
     }
+
     /**
-     * @param string $filteredParameters
+     * @param string|null $filteredParameters
      */
-    public function setFilteredParameters(string $filteredParameters)
+    public function setFilteredParameters(?string $filteredParameters)
     {
         $this->filteredParameters = $filteredParameters;
     }
diff --git a/composer.json b/composer.json
index 2db84bd..c52a290 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
   "name": "jorisdugue/h5p-bundle",
-  "version": "2.0.2",
+  "version": "2.1.0",
   "type": "symfony-bundle",
   "description": "H5P Bundle for Symfony 5, 6 and Symfony 7",
   "keywords": [