diff --git a/README.md b/README.md
index 55f8c34..d2ac592 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ Linux Insides
 |└ 5.7||未开始|
 | 6. Synchronization primitives||正在进行|
 |├ 6.0|[@mudongliang](https://github.com/mudongliang)|已完成|
-|├ 6.1|[@keltoy](https://github.com/keltoy)|正在进行|
+|├ 6.1|[@keltoy](https://github.com/keltoy)|已完成|
 |├ 6.2||未开始|
 |├ 6.3|[@huxq](https://github.com/huxq)|已完成|
 |├ 6.4|[@huxq](https://github.com/huxq)|正在进行|
diff --git a/contributors.md b/contributors.md
index e2ee234..2967089 100644
--- a/contributors.md
+++ b/contributors.md
@@ -27,3 +27,5 @@
 [@huxq](https://github.com/huxq)
 
 [@worldwar](https://github.com/worldwar)
+
+[@keltoy](https://github.com/keltoy)