diff --git a/test/Libplanet.Net.Tests/Messages/MessageTest.cs b/test/Libplanet.Net.Tests/Messages/MessageTest.cs
index b98a1b5f4c3..106a1cf46b5 100644
--- a/test/Libplanet.Net.Tests/Messages/MessageTest.cs
+++ b/test/Libplanet.Net.Tests/Messages/MessageTest.cs
@@ -115,7 +115,7 @@ public void GetId()
             var message = new BlockHeaderMsg(genesis.Hash, genesis.Header);
             Assert.Equal(
                 new MessageId(ByteUtil.ParseHex(
-                    "1aa2c8fad502f8890b2e8cf6f9afe57e6f718f454f14f8304165e921b28905bf")),
+                    "1d4296f8e28bfc873a5e72cbbd17454d7cf2dbee86c2481e4876e236f8ae2dee")),
                 message.Id);
         }