diff --git a/build_depends.repos b/build_depends.repos
index 32854cc34e362..a8f431f97df25 100644
--- a/build_depends.repos
+++ b/build_depends.repos
@@ -20,10 +20,6 @@ repositories:
     type: git
     url: https://github.com/autowarefoundation/autoware_internal_msgs.git
     version: main
-  core/external/autoware_auto_msgs:
-    type: git
-    url: https://github.com/tier4/autoware_auto_msgs.git
-    version: tier4/main
   # universe
   universe/external/tier4_autoware_msgs:
     type: git