diff --git a/rules/linux/at_command.yml b/rules/linux/at_command.yml
index 3f0316c5..d032a583 100644
--- a/rules/linux/at_command.yml
+++ b/rules/linux/at_command.yml
@@ -5,7 +5,7 @@ description: Detects the use of at/atd
 author: Ömer Günal, oscd.community
 date: 2020/10/06
 references:
-    - https://attack.mitre.org/techniques/T1053/001/
+    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1053.001/T1053.001.md
 logsource:
     product: linux
 detection: