diff --git a/specification/blueprint/resource-manager/Microsoft.Blueprint/preview/2018-11-01-preview/blueprintDefinition.json b/specification/blueprint/resource-manager/Microsoft.Blueprint/preview/2018-11-01-preview/blueprintDefinition.json
index 9e3930acada0..99f4bb5b87c3 100644
--- a/specification/blueprint/resource-manager/Microsoft.Blueprint/preview/2018-11-01-preview/blueprintDefinition.json
+++ b/specification/blueprint/resource-manager/Microsoft.Blueprint/preview/2018-11-01-preview/blueprintDefinition.json
@@ -1205,9 +1205,21 @@
             "type": "string",
             "description": "Name of peer artifact."
           }
+        },
+        "tags": {
+          "description": "Tags to be assigned to this resource group.",
+          "$ref": "#/definitions/ResourceGroupTagCollection"
         }
       }
     },
+    "ResourceGroupTagCollection": {
+      "description": "A dictionary of resource group tag values.",
+      "type": "object",
+      "properties": {},
+      "additionalProperties": {
+        "type": "string"
+      }
+    },
     "ParameterDefinitionMetadata": {
       "type": "object",
       "description": "User-friendly properties for this parameter.",