diff --git a/Source/domainset/cdn.conf b/Source/domainset/cdn.conf
index 290be7a6..0d6d394f 100644
--- a/Source/domainset/cdn.conf
+++ b/Source/domainset/cdn.conf
@@ -2681,3 +2681,4 @@ assets.vogue.com
 static.oomol.com
 uploads.sitepoint.com
 static.gnome.org
+assets.exercism.org