diff --git a/OpenAPI/TS28623_ComDefs.yaml b/OpenAPI/TS28623_ComDefs.yaml
index 9f9219381d2a9aa5c4b2ff19ea9e46d3a2fc2d5e..0d65230dd09e0d7cb7d1065f465ec9f12218a550 100755
--- a/OpenAPI/TS28623_ComDefs.yaml
+++ b/OpenAPI/TS28623_ComDefs.yaml
@@ -80,16 +80,15 @@ components:
           $ref: '#/components/schemas/Longitude'
         altitude:
           $ref: '#/components/schemas/Float'
-    ConvexGeoPolygon:
-      type: array
-      items:
-        $ref: '#/components/schemas/GeoCoordinate'
-      minItems: 3
     GeoArea:
-      type: object
-      properties:
-        convexGeoPolygon:
-          $ref: '#/components/schemas/ConvexGeoPolygon'
+      oneOf:
+        - type: object
+          properties:
+            geoPolygon:
+              type: array
+              items:
+                $ref: '#/components/schemas/GeoCoordinate'
+              minItems: 1
     GeoAreaToCellMapping:
       type: object
       properties: