diff --git a/releases/release-6.6.0.md b/releases/release-6.6.0.md
index 991655e106610..94b885cced3cb 100644
--- a/releases/release-6.6.0.md
+++ b/releases/release-6.6.0.md
@@ -584,7 +584,7 @@ In v6.6.0-DMR, the key new features and improvements are as follows:
 
     + TiCDC
 
-        - Fix the issue that `transaction_atomicity` and `protocol` cannot be updated via the configuration file [#7935](https://github.com/pingcap/tiflow/issues/7935) @[CharlesCheung96](https://github.com/CharlesCheung96)
+        - Fix the issue that `transaction-atomicity` and `protocol` cannot be updated via the configuration file [#7935](https://github.com/pingcap/tiflow/issues/7935) @[CharlesCheung96](https://github.com/CharlesCheung96)
         - Fix the issue that precheck is not performed on the storage path of redo log [#6335](https://github.com/pingcap/tiflow/issues/6335) @[CharlesCheung96](https://github.com/CharlesCheung96)
         - Fix the issue of insufficient duration that redo log can tolerate for S3 storage failure [#8089](https://github.com/pingcap/tiflow/issues/8089) @[CharlesCheung96](https://github.com/CharlesCheung96)
         - Fix the issue that changefeed might get stuck in special scenarios such as when scaling in or scaling out TiKV or TiCDC nodes [#8174](https://github.com/pingcap/tiflow/issues/8174) @[hicqu](https://github.com/hicqu)