diff --git a/.gitea/workflows/update-factorio-modlist.yml b/.gitea/workflows/update-factorio-modlist.yml
index ca483df..89885d9 100644
--- a/.gitea/workflows/update-factorio-modlist.yml
+++ b/.gitea/workflows/update-factorio-modlist.yml
@@ -32,7 +32,9 @@ jobs:
 
           json_array=$(echo "$zip_files" | jq -R -s -c 'split("\n")[:-1]')
 
-          echo "$json_array" > mods.json
+          timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+          echo "{\"timestamp\":\"$timestamp\", \"mod_list\":$json_array}" > mods.json
+
           echo "Lista file .zip: $json_array"
 
       - name: Upload mods.json via API