diff --git a/.github/workflows/vulnerability-scan.yml b/.github/workflows/vulnerability-scan.yml
index 485d0f5f..be64f0eb 100644
--- a/.github/workflows/vulnerability-scan.yml
+++ b/.github/workflows/vulnerability-scan.yml
@@ -12,14 +12,14 @@ jobs:
         uses: druzsan/setup-matrix@v2
         with:
           matrix: |
-            images: ${{ fromJson(vars.IMAGES) }}
+            images: ${{ vars.IMAGES }}
             exclude:
               - images: mailpit
       - if: github.ref_name != '5.x'
         uses: druzsan/setup-matrix@v2
         with:
           matrix: |
-            images: ${{ fromJson(vars.IMAGES) }}
+            images: ${{ vars.IMAGES }}
       - id: setup-matrix
         run: echo "matrix=$MATRIX" >> $GITHUB_OUTPUT
     outputs: