diff --git a/.github/workflows/security-scan.yml b/.github/workflows/security-scan.yml
index 7a89421..04f727d 100644
--- a/.github/workflows/security-scan.yml
+++ b/.github/workflows/security-scan.yml
@@ -51,7 +51,7 @@ jobs:
           run: docker tag ghcr.io/endava/docker-php:${{ env.PHP_VERSION }} php-${{ env.PHP_VERSION }}
 
       -   name: "IMAGE_SIZE Env"
-          run: echo "IMAGE_SIZE=`docker inspect php-${{ env.PHP_VERSION }} --format json | jq .[0].Size | numfmt --to=si`" > $GITHUB_ENV
+          run: echo "IMAGE_SIZE=`docker image save php-${{ env.PHP_VERSION }} | gzip | wc -c | numfmt --to=si`" > $GITHUB_ENV
 
       -   run: wget "https://img.shields.io/static/v1.png?label=${{ env.PHP_VERSION }}&message=${{ env.IMAGE_SIZE }}&color=blue" -O size-status.png