diff --git a/test/parachain/res/polkadot_chainspec.json b/test/parachain/res/polkadot_chainspec.json
index 4607c39dad..650d30b6b0 100644
--- a/test/parachain/res/polkadot_chainspec.json
+++ b/test/parachain/res/polkadot_chainspec.json
@@ -90,7 +90,7 @@
         "0x26aa394eea5630e07c48ae0c9558cef7b99d880ec681799c0cf30e8886371da9b0edae20838083f2cde1c4080db8cf8090b5ab205c6974c9ea841be688864633dc9ca8a357843eeacf2314649965fe22": "0x0000000000000064a7b3b6e00d0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
         "0x26aa394eea5630e07c48ae0c9558cef7f9cce9c888469bb1a0dceaa129672ef8": "0xb90f20706f6c6b61646f74"
       },
-      "children": {}
+      "childrenDefault": {}
     }
   }
 }
\ No newline at end of file