diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4c0a10fe..0c65d6c62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ Enhancements:
 * EIP-3529: Reduction in gas refunds
 * EIP-3541: Reject new contracts starting with the 0xEF byte
 * Delay difficulty bomb to December 2021 (EIP-3554)
-* London hardfork blocks: mainnet (12,833,000), goerli (5,062,605), rinkeby (8,897,988), ropsten (10,499,401)
+* London hardfork blocks: mainnet(12,833,000 will be updated in next version), goerli (5,062,605), rinkeby (8,897,988), ropsten (10,499,401)
 * Add chainspecs for aleut and baikal
 * Bump ethereum/tests to v9.0.1