diff --git a/amazon_paapi/models/item_result.py b/amazon_paapi/models/item_result.py
index 2ede0cb..8617201 100644
--- a/amazon_paapi/models/item_result.py
+++ b/amazon_paapi/models/item_result.py
@@ -144,7 +144,7 @@ class ApiTradeInInfo(models.TradeInInfo):
 class ApiItemInfo(models.ItemInfo):
     by_line_info: ApiByLineInfo
     classifications: ApiClassifications
-    content_info: ApiContentInfo
+    content_info: Optional[ApiContentInfo]
     content_rating: ApiContentRating
     external_ids: ApiExternalIds
     features: ApiFeatures
diff --git a/setup.py b/setup.py
index 36f0edb..c4f0797 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name='python-amazon-paapi',
-    version='4.3.1',
+    version='4.3.2',
     author='Sergio Abad',
     author_email='sergio.abad@bytelix.com',
     description='Amazon Product Advertising API 5.0 wrapper for Python',