diff --git a/openapi_core/unmarshalling/schemas/unmarshallers.py b/openapi_core/unmarshalling/schemas/unmarshallers.py
index b60f9c3..015edff 100644
--- a/openapi_core/unmarshalling/schemas/unmarshallers.py
+++ b/openapi_core/unmarshalling/schemas/unmarshallers.py
@@ -144,7 +144,8 @@ class ArrayUnmarshaller(ComplexUnmarshaller):
 
     def __call__(self, value=NoValue):
         value = super(ArrayUnmarshaller, self).__call__(value)
-
+        if value is None and self.schema.nullable:
+            return None
         return list(map(self.items_unmarshaller, value))