diff --git a/.github/reviewers.yml b/.github/reviewers.yml
index 9f32cc00..88c14a86 100644
--- a/.github/reviewers.yml
+++ b/.github/reviewers.yml
@@ -2,13 +2,12 @@ reviewers:
   # The default reviewers
   defaults:
     - repository-owners # group
+    - rocketmq-rust-bot # username
 
   # Reviewer groups each of which has a list of GitHub usernames
   groups:
     repository-owners:
       - mxsm # username
-      - RocketmqRustBot # username
-      - rocketmq-rust-bot # username
       - TeslaRustor # username
       - SpaceXCN # username
   
@@ -35,7 +34,7 @@ options:
 
   # Randomly pick reviewers up to this number.
   # Do not set this option if you'd like to assign all matching reviewers.
-  number_of_reviewers: 3
+  number_of_reviewers: 2
 
   # If it's true, the last matching files-change pattern takes the most precedence (CODEOWNERS-compatible)
   # See https://github.com/necojackarc/auto-request-review/pull/80 for more details.