diff --git a/files/demo_valid.yml b/files/demo_valid.yml
index f9fd667..dd59beb 100644
--- a/files/demo_valid.yml
+++ b/files/demo_valid.yml
@@ -4,20 +4,20 @@ columns:
   - name: Name
     rules:
       not_empty: true
-      min_length: 4
-      max_length: 7
+      length_min: 4
+      length_max: 7
 
   - name: City
     rules:
       not_empty: true
-      only_capitalize: true
+      is_capitalize: true
 
   - name: Float
     rules:
       not_empty: true
       is_float: true
-      min: -19366059128
-      max: 74606
+      num_min: -19366059128
+      num_max: 74606
 
   - name: Birthday
     rules: