diff --git a/CHANGELOG-zh.md b/CHANGELOG-zh.md
index 03eaffe6..a79b3eec 100644
--- a/CHANGELOG-zh.md
+++ b/CHANGELOG-zh.md
@@ -11,6 +11,7 @@
 ### Bug 修复
 - **定时任务爬虫选择问题**. 字段不会随着爬虫变化而响应.
 - **定时任务冲突问题**. 两个不同的爬虫设置定时任务，时间设置成相同的话，可能会有bug. [#515](https://github.com/crawlab-team/crawlab/issues/515) [#565](https://github.com/crawlab-team/crawlab/issues/565)
+- **任务日志问题**. 在同一时间触发的不同任务可能会写入同一个日志文件. [#577](https://github.com/crawlab-team/crawlab/issues/577)
 
 # 0.4.6 (2020-02-13)
 ### 功能 / 优化
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 142f3c72..3502cdf9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,10 +7,11 @@
 - **Upgrade Check**. Check latest version and notifiy users to upgrade.
 - **Spiders Batch Operation**. Allow users to run/stop spider tasks and delete spiders in batches.
 - **Copy Spiders**. Allow users to copy an existing spider to create a new one.
-- **Cron Jobs Conflict**. Possible bug when two spiders set to the same time of their cron jobs. [#515](https://github.com/crawlab-team/crawlab/issues/515) [#565](https://github.com/crawlab-team/crawlab/issues/565)
 
 ### Bug Fixes
 - **Schedule Spider Selection Issue**. Fields not responding to spider change.
+- **Cron Jobs Conflict**. Possible bug when two spiders set to the same time of their cron jobs. [#515](https://github.com/crawlab-team/crawlab/issues/515) [#565](https://github.com/crawlab-team/crawlab/issues/565)
+- **Task Log Issue**. Different tasks write to the same log file if triggered at the same time. [#577](https://github.com/crawlab-team/crawlab/issues/577)
 
 # 0.4.6 (2020-02-13)
 ### Features / Enhancement