diff --git a/.github/workflows/weekly-security-scan.yaml b/.github/workflows/weekly-security-scan.yaml
index b68803d2be5..52844c799bf 100644
--- a/.github/workflows/weekly-security-scan.yaml
+++ b/.github/workflows/weekly-security-scan.yaml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        branch: [ main, release-1.20, release-1.19 ]
+        branch: [ main, release-1.21, release-1.20 ]
     name: Trivy
     runs-on: ubuntu-latest
     steps: