diff --git a/ParkingSpot/schema.json b/ParkingSpot/schema.json
index 44e4e35..d60c0e0 100644
--- a/ParkingSpot/schema.json
+++ b/ParkingSpot/schema.json
@@ -1,131 +1,131 @@
 {
-    "$schema": "http://json-schema.org/schema#",
-    "$schemaVersion": "0.1.0",
-    "modelTags": "",
-    "$id": "https://smart-data-models.github.io/dataModel.Parking/ParkingSpot/schema.json",
-    "title": "Parking Spot",
-    "description": "A parking spot is an area well delimited where one vehicle can be parked.",
-    "type": "object",
-    "allOf": [
-        {
-            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$schemaVersion": "0.1.0",
+  "modelTags": "",
+  "$id": "https://smart-data-models.github.io/dataModel.Parking/ParkingSpot/schema.json",
+  "title": "Parking Spot",
+  "description": "A parking spot is an area well delimited where one vehicle can be parked.",
+  "type": "object",
+  "allOf": [
+    {
+      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
+    },
+    {
+      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
+    },
+    {
+      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/PhysicalObject-Commons"
+    },
+    {
+      "properties": {
+        "type": {
+          "type": "string",
+          "enum": [
+            "ParkingSpot"
+          ],
+          "description": "Property. NGSI Entity type. It has to be ParkingSpot"
         },
-        {
-            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
+        "status": {
+          "type": "string",
+          "enum": [
+            "closed",
+            "free",
+            "occupied",
+            "unknown"
+          ],
+          "description": "Property. Model:'https://schema.org/Text'. Status of the parking spot from the point of view of occupancy. Enum:'closed, free, occupied, unknown'"
         },
-        {
-            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/PhysicalObject-Commons"
+        "width": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/width'. Width of the parking spot"
         },
-        {
-            "properties": {
-                "type": {
-                    "type": "string",
-                    "enum": [
-                        "ParkingSpot"
-                    ],
-                    "description": "Property. NGSI Entity type. It has to be ParkingSpot"
-                },
-                "status": {
-                    "type": "string",
-                    "enum": [
-                        "closed",
-                        "free",
-                        "occupied",
-                        "unknown"
-                    ],
-                    "description": "Property. Model:'https://schema.org/Text'. Status of the parking spot from the point of view of occupancy. Enum:'closed, free, occupied, unknown'"
-                },
-                "width": {
-                    "type": "number",
-                    "minimum": 0,
-                    "description": "Property. Model:'https://schema.org/width'. Width of the parking spot"
-                },
-                "length": {
-                    "type": "number",
-                    "minimum": 0,
-                    "description": "Property. Model:'https://schema.org/length'. Length of the parking spot"
-                },
-                "refParkingGroup": {
-                    "description": "Relationship. Group to which the parking spot belongs to. For model simplification purposes only one group is allowed per parking spot",
-                    "anyOf": [
-                        {
-                            "type": "string",
-                            "minLength": 1,
-                            "maxLength": 256,
-                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
-                            "description": "Property. Identifier format of any NGSI entity"
-                        },
-                        {
-                            "type": "string",
-                            "format": "uri",
-                            "description": "Property. Identifier format of any NGSI entity"
-                        }
-                    ]
-                },
-                "refParkingSite": {
-                    "description": "Relationship. Parking site to which the parking spot belongs to",
-                    "anyOf": [
-                        {
-                            "type": "string",
-                            "minLength": 1,
-                            "maxLength": 256,
-                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
-                            "description": "Property. Identifier format of any NGSI entity"
-                        },
-                        {
-                            "type": "string",
-                            "format": "uri",
-                            "description": "Property. Identifier format of any NGSI entity"
-                        }
-                    ]
-                },
-                "category": {
-                    "type": "array",
-                    "description": "Property. Category(ies) of the parking spot. `onStreet` : The parking spot belongs to an onStreet parking site. `offStreet` : The parking spot belongs to an offStreet parking site",
-                    "minItems": 1,
-                    "uniqueItems": true,
-                    "items": {
-                        "type": "string",
-                        "enum": [
-                            "onStreet",
-                            "offStreet"
-                        ]
-                    }
-                },
-                "refDevice": {
-                    "type": "array",
-                    "items": {
-                        "anyOf": [
-                            {
-                                "type": "string",
-                                "minLength": 1,
-                                "maxLength": 256,
-                                "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
-                                "description": "Property. Identifier format of any NGSI entity"
-                            },
-                            {
-                                "type": "string",
-                                "format": "uri",
-                                "description": "Property. Identifier format of any NGSI entity"
-                            }
-                        ]
-                    },
-                    "minItems": 1,
-                    "uniqueItems": true,
-                    "description": "Relationship. The device representing the physical sensor used to monitor this parking spot"
-                },
-                "timeInstant": {
-                    "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/timeInstant"
-                }
+        "length": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/length'. Length of the parking spot"
+        },
+        "refParkingGroup": {
+          "description": "Relationship. Group to which the parking spot belongs to. For model simplification purposes only one group is allowed per parking spot",
+          "anyOf": [
+            {
+              "type": "string",
+              "minLength": 1,
+              "maxLength": 256,
+              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
+              "description": "Property. Identifier format of any NGSI entity"
+            },
+            {
+              "type": "string",
+              "format": "uri",
+              "description": "Property. Identifier format of any NGSI entity"
+            }
+          ]
+        },
+        "refParkingSite": {
+          "description": "Relationship. Parking site to which the parking spot belongs to",
+          "anyOf": [
+            {
+              "type": "string",
+              "minLength": 1,
+              "maxLength": 256,
+              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
+              "description": "Property. Identifier format of any NGSI entity"
+            },
+            {
+              "type": "string",
+              "format": "uri",
+              "description": "Property. Identifier format of any NGSI entity"
             }
+          ]
+        },
+        "category": {
+          "type": "array",
+          "description": "Property. Category(ies) of the parking spot. `onStreet` : The parking spot belongs to an onStreet parking site. `offStreet` : The parking spot belongs to an offStreet parking site",
+          "minItems": 1,
+          "uniqueItems": true,
+          "items": {
+            "type": "string",
+            "enum": [
+              "onStreet",
+              "offStreet"
+            ]
+          }
+        },
+        "refDevice": {
+          "type": "array",
+          "items": {
+            "anyOf": [
+              {
+                "type": "string",
+                "minLength": 1,
+                "maxLength": 256,
+                "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
+                "description": "Property. Identifier format of any NGSI entity"
+              },
+              {
+                "type": "string",
+                "format": "uri",
+                "description": "Property. Identifier format of any NGSI entity"
+              }
+            ]
+          },
+          "minItems": 1,
+          "uniqueItems": true,
+          "description": "Relationship. The device representing the physical sensor used to monitor this parking spot"
+        },
+        "timeInstant": {
+          "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/timeInstant"
         }
-    ],
-    "required": [
-        "id",
-        "location",
-        "type",
-        "status",
-        "category",
-        "refParkingSite"
-    ]
+      }
+    }
+  ],
+  "required": [
+    "id",
+    "location",
+    "type",
+    "status",
+    "category",
+    "refParkingSite"
+  ]
 }
\ No newline at end of file