diff --git a/README.md b/README.md
index 565c80e49dcc94f99597177b6c0a1496ec9f2712..b621fc3a1416f9891e45fe17d0d6b0e3648973a5 100644
--- a/README.md
+++ b/README.md
@@ -31,4 +31,4 @@
 
 ## 赞助我们
 
-![](https://data.apachecn.org/img/about/donate.jpg)
+![](http://data.apachecn.org/img/about/donate.jpg)