diff --git a/README.en.md b/README.en.md
index 34cb181..27ecb10 100644
--- a/README.en.md
+++ b/README.en.md
@@ -157,6 +157,8 @@ better performance in most time.
 
 Please open an _**issue**_ if you find something is not working as expected.
 
+[![Star History Chart](https://api.star-history.com/svg?repos=fishgoddess/cachego&type=Date)](https://star-history.com/#fishgoddess/cachego&Date)
+
 At last, I want to thank JetBrains for **free JetBrains Open Source license(s)**, because `cachego` is developed with
 Idea / GoLand under it.
 
diff --git a/README.md b/README.md
index 79c1bd3..fcdbe76 100644
--- a/README.md
+++ b/README.md
@@ -155,6 +155,8 @@ BenchmarkGoCacheSet-12                   4921483               249.0 ns/op
 
 如果您觉得 cachego 缺少您需要的功能，请不要犹豫，马上参与进来，发起一个 _**issue**_。
 
+[![Star History Chart](https://api.star-history.com/svg?repos=fishgoddess/cachego&type=Date)](https://star-history.com/#fishgoddess/cachego&Date)
+
 最后，我想感谢 JetBrains 公司的 **free JetBrains Open Source license(s)**，因为 `cachego` 是用该计划下的 Idea / GoLand 完成开发的。
 
 <a href="https://www.jetbrains.com/?from=cachego" target="_blank"><img src="./_icons/jetbrains.png" width="250"/></a>