mapnik to requires in carto-package

carto-package.json

@@ -3,13 +3,13 @@
     "current_version": {
         "requires": {
             "node": ">=6.9.2 <10.0",
-            "yarn": ">=0.27.5 <1.0.0"
+            "yarn": ">=0.27.5 <1.0.0",
+            "mapnik": ">=3.0.15"
         },
         "works_with": {
             "redis": ">=3.0.0",
             "postgresql": ">=9.5",
             "postgis": ">=2.2",
-            "mapnik": ">=3.0.15",
             "carto_postgresql_ext": ">=0.19"
         }
     }