diff --git a/collection/opendb-verify-codes/collection.json b/collection/opendb-verify-codes/collection.json
index 54f2cb0..44f40fa 100644
--- a/collection/opendb-verify-codes/collection.json
+++ b/collection/opendb-verify-codes/collection.json
@@ -80,5 +80,17 @@
       }],
       "MgoIsUnique": false
     }
+  }, {
+    "IndexName": "state_expired_data_",
+    "MgoKeySchema": {
+      "MgoIndexKeys": [{
+        "Name": "state",
+        "Direction": "1"
+      }, {
+        "Name": "expired_date",
+        "Direction": "1"
+      }],
+      "MgoIsUnique": false
+    }
   }]
 }