diff --git a/src/openapi/fiko/fiko-crud.yaml b/src/openapi/fiko/fiko-crud.yaml
index e93b813..f7b30f8 100644
--- a/src/openapi/fiko/fiko-crud.yaml
+++ b/src/openapi/fiko/fiko-crud.yaml
@@ -2254,7 +2254,7 @@ paths:
             examples:
               Update tax metadata:
                 summary: Update tax metadata
-                description: In this example the tax metadata is updated. 
+                description: In this example the tax metadata is updated.
                 value:
                   taxCode: V09
                   taxPercentage: 9
@@ -4601,12 +4601,11 @@ components:
     AccountingPeriodMetadataPatchRequestBody:
       type: object
       properties:
-        accountingPeriod:
-          type: string
-          example: 2024/01
         isOpen:
           type: boolean
           example: true
+      required:
+        - isOpen
     AccountingPeriodMetadataPatchResponseBody:
       type: object
       properties: