diff --git a/.github/workflows/aws-ec2-runner-janitor.yml b/.github/workflows/aws-ec2-runner-janitor.yml
index 1c4435022b4..0355a1159d9 100644
--- a/.github/workflows/aws-ec2-runner-janitor.yml
+++ b/.github/workflows/aws-ec2-runner-janitor.yml
@@ -10,6 +10,7 @@ permissions:
 
 jobs:
   sweep:
+    if: ${{ github.repository == 'GreptimeTeam/greptimedb' }}
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
diff --git a/.github/workflows/query-regression-janitor.yml b/.github/workflows/query-regression-janitor.yml
index ce277ce2f02..c615729206c 100644
--- a/.github/workflows/query-regression-janitor.yml
+++ b/.github/workflows/query-regression-janitor.yml
@@ -14,6 +14,7 @@ permissions:
 
 jobs:
   sweep:
+    if: ${{ github.repository == 'GreptimeTeam/greptimedb' }}
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps: