diff --git a/tools_webrtc/mb/mb_config.pyl b/tools_webrtc/mb/mb_config.pyl
index 364240a19a..a330315cc0 100644
--- a/tools_webrtc/mb/mb_config.pyl
+++ b/tools_webrtc/mb/mb_config.pyl
@@ -33,7 +33,6 @@
       'Mac64 Release': 'release_bot_x64',
       'Mac64 Builder': 'pure_release_bot_x64',
       'Mac Asan': 'mac_asan_clang_release_bot_x64',
-      'MacARM64 M1 Debug': 'debug_bot_arm64',
       'MacARM64 M1 Release': 'release_bot_arm64',
 
       # Linux
@@ -163,8 +162,6 @@
       'mac_dbg': 'debug_bot_x64',
       'mac_rel': 'release_bot_x64',
       'mac_asan': 'mac_asan_clang_release_bot_x64',
-      'MacARM64 M1 Debug try': 'debug_bot_arm64',
-      'MacARM64 M1 Release try': 'release_bot_arm64',
 
       # Linux
       'linux_compile_dbg': 'debug_bot_x64',