diff --git a/.github/workflows/pr-open.yml b/.github/workflows/pr-open.yml
index 51e214ae..8ff580df 100644
--- a/.github/workflows/pr-open.yml
+++ b/.github/workflows/pr-open.yml
@@ -29,7 +29,7 @@ jobs:
               BASE=${d%/*}
               VERSION=${BASE##*/}
               PACKAGE=${BASE%/*}
-              echo "{"package": "$PACKAGE", "major_tag": "$VERSION"},"
+              echo "{\"package\": \"$PACKAGE\", \"major_tag\": \"$VERSION\"},"
             done
             echo "]"
           )
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        include: ${{ needs.scrub.outputs.json }}
+        include: ${{ fromJSON(needs.scrub.outputs.json) }}
         # include: [ {"package": "bitnami/postgresql", "major_tag": "12"}, {"package": "bitnami/postgresql", "major_tag": "13"}, {"package": "bitnami/postgresql", "major_tag": "14"}, {"package": "bitnami/postgresql", "major_tag": "15"}, {"package": "bitnami/postgresql", "major_tag": "16"} ]
     timeout-minutes: 10
     steps: