diff --git a/README.md b/README.md
index 1e33560..b6bb86d 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ For example
 
 ## Is it safe to place tracking image? 
 
-GitHub passes all images URLs through their proxy [_camo_](https://github.com/atmos/camo) service.
+GitHub passes all images URLs through their [GitHub Camo proxy service](https://github.blog/2010-11-13-sidejack-prevention-phase-3-ssl-proxied-assets/).
 
 This means that only GitHub can track personal information, such as visitors User Agent or IP address.
 Third party cloud service stores only views timestamps and total count of views.