diff --git a/.github/workflows/teams.yml b/.github/workflows/teams.yml
index b848983b5aa2..cca0ca1f65da 100644
--- a/.github/workflows/teams.yml
+++ b/.github/workflows/teams.yml
@@ -14,6 +14,7 @@ defaults:
 
 jobs:
   sync:
+    if: github.event_name != 'schedule' || github.repository_owner == 'NixOS'
     runs-on: ubuntu-24.04-arm
     steps:
       # Use a GitHub App to create the PR so that CI gets triggered and to