--- a/exceptionrules/exceptionrules-no-third-party-tracking.txt
+++ b/exceptionrules/exceptionrules-no-third-party-tracking.txt
@@ -170,14 +170,19 @@ linkedin.com##IMG.img_ad[src^="https://m
 
 ! centrifuge-lemag.fr ads (https://adblockplus.org/forum/viewtopic.php?f=12&t=54236)
 @@||centrifuge-lemag.fr/wp-content/uploads/*-728x90-$image,domain=centrifuge-lemag.fr
 centrifuge-lemag.fr#@#[role="banner"] > #cb-logo-box
 
 ! south-plus.net ads (https://adblockplus.org/forum/viewtopic.php?f=12&t=54245)
 @@||bbs.south-plus.net/images/$image,domain=bbs.south-plus.net
 
+! Readthedocs.io ads (https://adblockplus.org/forum/viewtopic.php?f=12&t=56425)
+@@||readthedocs.org/api/*/sustainability/$script,domain=readthedocs.io
+@@||readthedocs.org/sustainability/$domain=readthedocs.io
+readthedocs.io#@#.ethical-rtd
+
 ! Combined rules for sites using detection
 @@/px.gif?ch=1&rn=$domain=yelp.com
 /px.gif?ch=2&rn=$domain=yelp.com
 
 @@/px.js?ch=1$domain=linkedin.com
 /px.js?ch=2$domain=linkedin.com