diff --git a/CHANGELOG_PENDING.md b/CHANGELOG_PENDING.md
index 6ddb8f795..2f2eb506b 100644
--- a/CHANGELOG_PENDING.md
+++ b/CHANGELOG_PENDING.md
@@ -10,6 +10,8 @@ Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermi
 
 - CLI/RPC/Config
 
+  - [config] \#9259 Rename the fastsync section and the fast_sync key blocksync and block_sync respectively
+
 - Apps
 
   - [abci/counter] \#6684 Delete counter example app