diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
index b91fef4b4100..6b9f66440c45 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
@@ -2266,6 +2266,10 @@
           "description": "The security token is required to remotely access Salesforce instance.",
           "$ref": "../datafactory.json#/definitions/SecretBase"
         },
+        "apiVersion": {
+          "type": "object",
+          "description": "The Salesforce API version used in ADF. Type: string (or Expression with resultType string)."
+        },
         "encryptedCredential": {
           "type": "object",
           "description": "The encrypted credential used for authentication. Credentials are encrypted using the integration runtime credential manager. Type: string (or Expression with resultType string)."