diff --git a/PhaseInfo/schema.json b/PhaseInfo/schema.json
index bd84101..2d8b2e2 100644
--- a/PhaseInfo/schema.json
+++ b/PhaseInfo/schema.json
@@ -1,54 +1,54 @@
 {
-    "$schema": "http://json-schema.org/schema#",
-    "$schemaVersion": "0.0.1",
-    "$id": "https://smart-data-models.github.io/dataModel.ERA/Certificate/schema.json",
-    "modelTags": "ERA vocabulary, railway, train",
-    "license": "https://smart-data-models.github.io/dataModel.ERA/Certificate/LICENSE.md",
-    "derivedFrom": "http://data.europa.eu/949/PhaseInfo",
-    "type": "object",
-    "allOf": [
-        {
-            "$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": "0.0.1",
+  "$id": "https://smart-data-models.github.io/dataModel.ERA/Certificate/schema.json",
+  "modelTags": "ERA vocabulary, railway, train",
+  "license": "https://smart-data-models.github.io/dataModel.ERA/Certificate/LICENSE.md",
+  "derivedFrom": "http://data.europa.eu/949/PhaseInfo",
+  "type": "object",
+  "allOf": [
+    {
+      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
+    },
+    {
+      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
+    },
+    {
+      "properties": {
+        "type": {
+          "type": "string",
+          "enum": [
+            "PhaseInfo"
+          ],
+          "description": "Property. NGSI data type. It has to be PhaseInfo"
         },
-        {
-            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
+        "phaseInfoKm": {
+          "type": "number",
+          "description": "Property. Phase info Km"
         },
-        {
-            "properties": {
-                "type": {
-                    "type": "string",
-                    "enum": [
-                        "PhaseInfo"
-                    ],
-                    "description": "Property. NGSI data type. It has to be PhaseInfo"
-                },
-                "phaseInfoKm": {
-                    "type": "number",
-                    "description": "Property. Phase info Km"
-                },
-                "phaseInfoLength": {
-                    "type": "integer",
-                    "description": "Property. Phase info length"
-                },
-                "phaseInfoPantographLowered": {
-                    "type": "boolean",
-                    "description": "Property. Phase info pantograph lowered"
-                },
-                "phaseInfoSwitchOffBreaker": {
-                    "type": "boolean",
-                    "description": "Property. Phase info switch off breaker"
-                },
-                "systemSeparationInfoKm": {
-                    "type": "number",
-                    "description": "Property. System separation info Km"
-                }
-            }
+        "phaseInfoLength": {
+          "type": "integer",
+          "description": "Property. Phase info length"
+        },
+        "phaseInfoPantographLowered": {
+          "type": "boolean",
+          "description": "Property. Phase info pantograph lowered"
+        },
+        "phaseInfoSwitchOffBreaker": {
+          "type": "boolean",
+          "description": "Property. Phase info switch off breaker"
+        },
+        "systemSeparationInfoKm": {
+          "type": "number",
+          "description": "Property. System separation info Km"
         }
-    ],
-    "required": [
-        "id",
-        "type"
-    ],
-    "title": "PhaseInfo + mapped from ERA ontology by Smart Data Models",
-    "description": "Indication of required several information on phase separation."
+      }
+    }
+  ],
+  "required": [
+    "id",
+    "type"
+  ],
+  "title": "PhaseInfo + mapped from ERA ontology by Smart Data Models",
+  "description": "Indication of required several information on phase separation."
 }
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