diff --git a/accelerated-domains.china.conf b/accelerated-domains.china.conf
index 298277e027..2fec0e179d 100644
--- a/accelerated-domains.china.conf
+++ b/accelerated-domains.china.conf
@@ -15502,7 +15502,6 @@ server=/cn163.net/114.114.114.114
 server=/cn168.com/114.114.114.114
 server=/cn18k.com/114.114.114.114
 server=/cn20.com/114.114.114.114
-server=/cn21edu.com/114.114.114.114
 server=/cn22.net/114.114.114.114
 server=/cn2che.com/114.114.114.114
 server=/cn314.com/114.114.114.114