Issue choosing minimal TLS version for Azure SQL server ARM template

Hi, I have an issue trying to choose the minimal TLS version for my Azure SQL server. Everytime I try to deploy this template without this parameter it works and when I deploy it with this parameter it fails. I was wondering if anyone knows why and how can still implement this in the template below.

{  
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",  
    "contentVersion": "1.0.0.0",  
    "parameters": {  
        "serverName": {  
            "defaultValue": "[uniqueString('sql', resourceGroup().id)]",  
            "type": "string",  
            "metadata": {  
                "description": "The name of the SQL logical server."  
            }  
        },  
        "location": {  
            "defaultValue": "[resourceGroup().location]",  
            "type": "string",  
            "metadata": {  
                "description": "Location for all resources."  
            }  
        },  
        "administratorLogin": {  
            "type": "string",  
            "metadata": {  
                "description": "The administrator username of the SQL logical server."  
            }  
        },  
        "administratorLoginPassword": {  
            "type": "securestring",  
            "metadata": {  
                "description": "The administrator password of the SQL logical server."  
            }  
        },  
        "AAD Admin Login": {  
            "type": "string",  
            "defaultValue": "",  
            "metadata": {  
                "description": "Emailaddress of the Azure Active Directory administrator."  
            }  
        },  
        "AAD Admin ObjectID": {  
            "type": "string",  
            "defaultValue": "",  
            "metadata": {  
                "description": "SID (object ID) of the server administrator."  
            }  
        },  
        "AAD TenantId": {  
            "type": "string",  
            "defaultValue": "[subscription().tenantId]",  
            "metadata": {  
                "description": "Tenant ID of the administrator."  
            }  
        },  
        "minimalTlsVersion":{  
            "type": "string",  
            "defaultValue": "1.2",  
            "allowedValues": [  
                "1.0",  
                "1.1",  
                "1.2"  
                    ],  
            "metadata": {  
                "description": "Minimal TLS version. Allowed values: '1.0', '1.1', '1.2'."  
            }      
        },  
        "sqlDBName": {  
            "type": "string",  
            "defaultValue": "",  
            "metadata": {  
                "description": "The name of the SQL Database."  
            }  
        },  
        "tier": {  
            "type": "string",  
            "defaultValue": "GeneralPurpose",  
            "metadata": {  
                "description": "The tier or edition of the particular SKU, e.g. Basic, Premium."  
            }  
            },  
        "skuName": {  
            "type": "string",  
            "defaultValue": "GP_Gen5_2",  
            "metadata": {  
                "description": "The database SKU."  
            }  
        },  
        "catalogCollation":{  
        "type": "string",  
        "defaultValue": "SQL_Latin1_General_CP1_CI_AS",  
        "allowedValues": [  
            "SQL_Latin1_General_CP1_CI_AS",  
            "DATABASE_DEFAULT"  
        ],  
        "metadata": {  
            "description": "Collation of the metadata catalog."  
        }  
        },  
        "licenseType":{  
            "type": "string",  
            "defaultValue": "LicenseIncluded",  
            "allowedValues": [  
                "LicenseIncluded",  
                "BasePrice"  
            ],  
            "metadata": {  
                "description": "The license type to apply for this database. LicenseIncluded if you need a license, or BasePrice if you have a license and are eligible for the Azure Hybrid Benefit."  
            }  
        },  
        "highAvailabilityReplicaCount":{  
            "type": "int",  
            "defaultValue": 0,  
            "metadata": {  
                "description": "The number of secondary replicas associated with the database that are used to provide high availability."  
            }  
        },  
        "requestedBackupStorageRedundancy":{  
            "type": "string",  
            "defaultValue": "Local",  
            "allowedValues": [  
                "Local",  
                "Zone"  
            ],  
            "metadata": {  
                "description": "The storage account type to be used to store backups for this database."  
            }  
        },  
        "zoneRedundant": {  
        "type": "bool",  
        "defaultValue": "false",  
        "metadata": {"description": "Whether or not this database is zone redundant, which means the replicas of this database will be spread across multiple availability zones."  
            }  
        }  
    },  
    "resources": [  
        {  
            "type": "Microsoft.Sql/servers",  
            "apiVersion": "2014-04-01",  
            "name": "[parameters('serverName')]",  
            "location": "[parameters('location')]",  
            "properties": {  
                "administratorLogin": "[parameters('administratorLogin')]",  
                "administratorLoginPassword": "[parameters('administratorLoginPassword')]",  
                "minimalTlsVersion": "[parameters('minimalTlsVersion')]"  
            },  
            "resources": [  
                {  
                    "type": "administrators",  
                    "apiVersion": "2014-04-01",  
                    "name": "activeDirectory",  
                    "location": "[parameters('Location')]",  
                    "dependsOn": [  
                        "[concat('Microsoft.Sql/servers/', parameters('serverName'))]"  
                    ],  
                    "properties": {  
                        "administratorType": "ActiveDirectory",  
                        "login": "[parameters('AAD Admin Login')]",  
                        "sid": "[parameters('AAD Admin ObjectID')]",  
                        "tenantId": "[parameters('AAD TenantID')]"  
                    }  
                }  
            ]  
        },  
        {  
            "type": "Microsoft.Sql/servers/databases",  
            "apiVersion": "2017-03-01-preview",  
            "name": "[format('{0}/{1}', parameters('serverName'), parameters('sqlDBName'))]",  
            "location": "[parameters('location')]",  
            "dependsOn": [  
                "[resourceId('Microsoft.Sql/servers', parameters('serverName'))]"  
            ],  
            "sku": {  
                "name": "Standard",  
                "tier": "Standard"  
            },  
            "properties": {  
                "catalogCollation": "[parameters('catalogCollation')]",  
                "highAvailabilityReplicaCount": "[parameters('highAvailabilityReplicaCount')]",  
                "licenseType": "[parameters('licenseType')]",  
                "requestedBackupStorageRedundancy": "[parameters('requestedBackupStorageRedundancy')]",  
                "zoneRedundant": "[parameters('zoneRedundant')]"  
            }  
        }  
    ]  
}