diff --git a/README.md b/README.md
index 1783a97..78cd65f 100644
--- a/README.md
+++ b/README.md
@@ -60,3 +60,10 @@ pomo start -t dev -p 2 -d 1m "Write Some Codes"
   * Generate charts
   * Alternate notifiers
   * ??
+
+## Credits
+
+ * [pomodoro technique](https://cirillocompany.de/pages/pomodoro-technique/book/)
+ * [logo by rones](https://openclipart.org/detail/262421/tomato-by-rones)
+ * [website generate by hugo](http://gohugo.io/)
+ * [theme by calintat](https://github.com/calintat/minimal)
diff --git a/docs/index.html b/docs/index.html
index 41a24ce..07b4d28 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -185,6 +185,15 @@ pomo start -t dev -p 2 -d 1m "Write Some Codes"
 <li>Generate charts</li>
 <li>Alternate notifiers</li>
 <li>??</li>
+</ul>
+
+<h2 id="credits">Credits</h2>
+
+<ul>
+<li><a href="https://cirillocompany.de/pages/pomodoro-technique/book/">pomodoro technique</a></li>
+<li><a href="https://openclipart.org/detail/262421/tomato-by-rones">logo by rones</a></li>
+<li><a href="http://gohugo.io/">website generate by hugo</a></li>
+<li><a href="https://github.com/calintat/minimal">theme by calintat</a></li>
 </ul>
 
     </div>