diff --git a/conf.json b/conf.json
index ae5c2ab..d8a3f9e 100644
--- a/conf.json
+++ b/conf.json
@@ -1,53 +1,57 @@
 {
-  "stages": [
-    {
-      "name": "sample",
-      "executor": {
-        "name": "sandbox",
-        "with": {
-          "default": {
-            "args": [
-              "./sample",
-              "--score",
-              "100"
-            ],
-            "env": [
-              "PATH=/usr/bin:/bin"
-            ],
-            "cpuLimit": 10000000000,
-            "memoryLimit": 104857600,
-            "procLimit": 50,
-            "copyInDir": ".",
-            "copyIn": {
-              "sample": {
-                "src": "./../../../../../../build/sample"
+  "stage": {
+    "stages": [
+      {
+        "name": "sample",
+        "executor": {
+          "name": "sandbox",
+          "with": {
+            "default": {
+              "args": [
+                "./sample",
+                "--score",
+                "100"
+              ],
+              "env": [
+                "PATH=/usr/bin:/bin"
+              ],
+              "cpuLimit": 10000000000,
+              "memoryLimit": 104857600,
+              "procLimit": 50,
+              "copyInDir": ".",
+              "copyIn": {
+                "sample": {
+                  "src": "./../../../../../../build/sample"
+                }
+              },
+              "copyOut": [
+                "stdout",
+                "stderr"
+              ],
+              "stdin": {
+                "content": ""
+              },
+              "stdout": {
+                "name": "stdout",
+                "max": 4096
+              },
+              "stderr": {
+                "name": "stderr",
+                "max": 4096
               }
-            },
-            "copyOut": [
-              "stdout",
-              "stderr"
-            ],
-            "stdin": {
-              "content": ""
-            },
-            "stdout": {
-              "name": "stdout",
-              "max": 4096
-            },
-            "stderr": {
-              "name": "stderr",
-              "max": 4096
             }
           }
-        }
-      },
-      "parser": {
-        "name": "sample",
-        "with": {
-          "score": 10,
-          "comment": " + comment from toml conf"
-        }
+        },
+        "parsers": [
+          {
+            "name": "sample",
+            "with": {
+              "score": 10,
+              "comment": " + comment from toml conf"
+            }
+          }
+        ]
       }
-    }
-  ]
-}
+    ]
+  }
+}
\ No newline at end of file