diff --git a/README.md b/README.md
index 1dddc194b..b24e9d921 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ The maintainers of RFCs and the community will review the PR, and you should upd
 | [1](rfcs/0001-positioning) | [The Nervos Network Positioning Paper](rfcs/0001-positioning/0001-positioning.md) | The Nervos Team | Informational | Final |
 | [2](rfcs/0002-ckb) | [Nervos CKB: A Common Knowledge Base for Crypto-Economy](rfcs/0002-ckb/0002-ckb.md) | Jan Xie | Informational | Final |
 | [3](rfcs/0003-ckb-vm) | [CKB-VM](rfcs/0003-ckb-vm/0003-ckb-vm.md) | Xuejie Xiao | Informational | Final |
-| [4](rfcs/0004-ckb-block-sync) | [CKB Block Synchronization Protocol](rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md) | Ian Yang | Standards Track | Proposal |
+| [4](rfcs/0004-ckb-block-sync) | [CKB Block Synchronization Protocol](rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md) | Ian Yang | Informational | Final |
 | [5](rfcs/0005-priviledged-mode) | [Privileged architecture support for CKB VM](rfcs/0005-priviledged-mode/0005-priviledged-mode.md) | Xuejie Xiao | Informational | Withdrawn |
 | [6](rfcs/0006-merkle-tree) | [Merkle Tree for Static Data](rfcs/0006-merkle-tree/0006-merkle-tree.md) | Ke Wang | Standards Track | Active |
 | [7](rfcs/0007-scoring-system-and-network-security) | [P2P Scoring System And Network Security](rfcs/0007-scoring-system-and-network-security/0007-scoring-system-and-network-security.md) | Jinyang Jiang | Standards Track | Withdrawn |
diff --git a/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md b/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md
index c0de466ed..54a8e3413 100644
--- a/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md
+++ b/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md
@@ -1,7 +1,7 @@
 ---
 Number: "0004"
-Category: Standards Track
-Status: Proposal
+Category: Information
+Status: Final
 Author: Ian Yang
 Organization: Nervos Foundation
 Created: 2018-07-25
diff --git a/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.zh.md b/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.zh.md
index b1cd62f87..7a7191489 100644
--- a/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.zh.md
+++ b/rfcs/0004-ckb-block-sync/0004-ckb-block-sync.zh.md
@@ -1,7 +1,7 @@
 ---
 Number: "0004"
-Category: Standards Track
-Status: Proposal
+Category: Information
+Status: Final
 Author: Ian Yang
 Organization: Nervos Foundation
 Created: 2018-07-25