diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b100f7663fed192634b152b2b14f501800d650b4..31adb8e0d241b84750d0f3e45403bc0442f300c4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -136,7 +136,9 @@ include:
         - test/taiko/*
     - if: '$TRIGGER_JOBS =~ /enable-rocketchat/'
     - if: '$CI_COMMIT_MESSAGE =~ /TRIGGER_JOBS=.*enable-rocketchat/'
-    - if: '$CI_COMMIT_BRANCH == "main"'
+    # Because we're replacing Rocket.Chat with Zulip, and to spare resources, we
+    # do not test it in the all `main` CI pipelines anymore.
+    # - if: '$CI_COMMIT_BRANCH == "main"'
 
 .single_sign_on_rules:
   rules: