Update dev-dependencies

package.json

@@ -10,24 +10,24 @@
     "down",
     "downward"
   ],
-  "dependencies": {
-    "to-vfile": "^2.0.0"
-  },
-  "files": [
-    "index.js"
-  ],
   "repository": "https://github.com/vfile/vfile-find-down",
   "bugs": "https://github.com/vfile/vfile-find-down/issues",
   "author": "Titus Wormer <[email protected]> (http://wooorm.com)",
   "contributors": [
     "Titus Wormer <[email protected]> (http://wooorm.com)"
   ],
+  "files": [
+    "index.js"
+  ],
+  "dependencies": {
+    "to-vfile": "^2.0.0"
+  },
   "devDependencies": {
-    "nyc": "^10.0.0",
-    "remark-cli": "^3.0.0",
-    "remark-preset-wooorm": "^2.0.0",
+    "nyc": "^11.0.0",
+    "remark-cli": "^4.0.0",
+    "remark-preset-wooorm": "^3.0.0",
     "tape": "^4.0.0",
-    "xo": "^0.17.1"
+    "xo": "^0.18.1"
   },
   "scripts": {
     "build-md": "remark . -qfo",
@@ -44,9 +44,12 @@
     "branches": 100
   },
   "xo": {
-    "space": true
+    "space": true,
+    "esnext": false
   },
   "remarkConfig": {
-    "plugins": ["preset-wooorm"]
+    "plugins": [
+      "preset-wooorm"
+    ]
   }
 }