diff --git a/documentation/OpenApi/openapi.yaml b/documentation/OpenApi/openapi.yaml
index f333c2c..b6d7dc1 100644
--- a/documentation/OpenApi/openapi.yaml
+++ b/documentation/OpenApi/openapi.yaml
@@ -769,18 +769,21 @@ components:
         preparationAdvices:
           type: string
         tips:
-          type: string
-          nullable: true
+          type:
+            - string
+            - 'null'
           example: Servir chaud
         sellFamilly:
-          type: string
-          nullable: true
+          type:
+            - string
+            - 'null'
           example: Volaille
         ingredients:
           $ref: '#/components/schemas/IncoIngredients'
         portions:
-          $ref: '#/components/schemas/IncoPortionAmount'
-          nullable: true
+          oneOf:
+            - $ref: '#/components/schemas/IncoPortionAmount'
+            - type: 'null'
         allergens:
           type: array
           items:
@@ -790,29 +793,35 @@ components:
         isSeasonal:
           type: boolean
         weight:
-          $ref: '#/components/schemas/IncoWeight'
-          nullable: true
+          oneOf:
+            - $ref: '#/components/schemas/IncoWeight'
+            - type: 'null'
         nutriscore:
-          $ref: '#/components/schemas/IncoNutriscore'
-          nullable: true
+          oneOf:
+          - $ref: '#/components/schemas/IncoNutriscore'
+          - type: 'null'
         storageCondition:
-          $ref: '#/components/schemas/IncoStorageCondition'
-          nullable: true
+          oneOf:
+            - $ref: '#/components/schemas/IncoStorageCondition'
+            - type: 'null'
         additives:
           type: array
           items:
             $ref: '#/components/schemas/IncoAdditive'
         compo:
-          type: string
-          nullable: true
+          type:
+            - string
+            - 'null'
           pattern: '^\d{1,}$'
         createdAt:
-          type: string
-          nullable: true
+          type:
+            - string
+            - 'null'
           format: date-time
         updatedAt:
-          type: string
-          nullable: true
+          type:
+            - string
+            - 'null'
           format: date-time
 
     IncoWeight:
@@ -966,12 +975,14 @@ components:
           type: string
           example: Poulet Rôti Classe A
         createdAt:
-          type: string
-          nullable: true
+          type:
+            - string
+            - 'null'
           format: date-time
         updatedAt:
-          type: string
-          nullable: true
+          type:
+            - string
+            - 'null'
           format: date-time
 
     IncoCompo: