diff --git a/config.json.example b/config.json.example
index 80662b0f..9ee00c09 100644
--- a/config.json.example
+++ b/config.json.example
@@ -2,18 +2,13 @@
     "test": {
         "db": {
             "dialect": "sqlite",
-            "storage": "./db.hackmd.sqlite"
+            "storage": ":memory:"
         }
     },
     "development": {
-        "domain": "localhost",
         "db": {
-            "username": "",
-            "password": "",
-            "database": "hackmd",
-            "host": "localhost",
-            "port": "3306",
-            "dialect": "mysql"
+            "dialect": "sqlite",
+            "storage": "./db.hackmd.sqlite"
         }
     },
     "production": {