diff --git a/package-lock.json b/package-lock.json
index a02e2cd..97e07d4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1269,9 +1269,9 @@
       "integrity": "sha512-YhVsCLNgy1lUXqfEFqt89E+JRRviFjkSwrYTnL7sXgwwS6dx/39YRNugBPXTZyNVzmriWedf0J4tu9+xbDGXbw=="
     },
     "@mapbox/mapbox-gl-style-spec": {
-      "version": "13.2.1",
-      "resolved": "https://registry.npmjs.org/@mapbox/mapbox-gl-style-spec/-/mapbox-gl-style-spec-13.2.1.tgz",
-      "integrity": "sha512-6e/uOr4QVgzPyKmP/7qeq4VlDx5DmHKxCY2htN7nASXf85EUJZ7hg6gvwVLg+3mBSjia+XZvuzNeIP0+WBGZvA==",
+      "version": "13.3.0",
+      "resolved": "https://registry.npmjs.org/@mapbox/mapbox-gl-style-spec/-/mapbox-gl-style-spec-13.3.0.tgz",
+      "integrity": "sha512-jEdKvDRPW95EBNRhpGuzZl6DpToDtQkJGlicz7QH8lWz+IxDfHUJV46yj+g8wgWGFiiTY3+xUrJKo6XrYjFRjw==",
       "requires": {
         "@mapbox/jsonlint-lines-primitives": "~2.0.2",
         "@mapbox/unitbezier": "^0.0.0",
diff --git a/package.json b/package.json
index 5e50204..9f5ad45 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "dependencies": {
     "@babel/runtime": "^7.1.2",
     "@mapbox/mapbox-gl-rtl-text": "^0.2.1",
-    "@mapbox/mapbox-gl-style-spec": "^13.1.0",
+    "@mapbox/mapbox-gl-style-spec": "^13.3.0",
     "classnames": "^2.2.6",
     "codemirror": "^5.40.2",
     "color": "^3.0.0",
diff --git a/src/config/layout.json b/src/config/layout.json
index c5a0eca..e99b9e0 100644
--- a/src/config/layout.json
+++ b/src/config/layout.json
@@ -71,7 +71,8 @@
             "fill-extrusion-translate-anchor",
             "fill-extrusion-pattern",
             "fill-extrusion-height",
-            "fill-extrusion-base"
+            "fill-extrusion-base",
+            "fill-extrusion-vertical-gradient"
           ]
         }
       ]
@@ -105,7 +106,8 @@
           "fields": [
             "symbol-placement",
             "symbol-spacing",
-            "symbol-avoid-edges"
+            "symbol-avoid-edges",
+            "symbol-z-order"
           ]
         },
         {