diff --git a/index.js b/index.js
index 3a7d6ba..f0e22e4 100644
--- a/index.js
+++ b/index.js
@@ -139,7 +139,7 @@ function gatherReferences(file, project) {
      *
      * @example
      *   link({
-     *     href: 'foo/bar/baz.md#foo',
+     *     url: 'foo/bar/baz.md#foo',
      *     children: [
      *       {
      *         type: 'text',
@@ -151,7 +151,7 @@ function gatherReferences(file, project) {
      * @param {Node} node - Link or link-reference node.
      */
     function onlink(node) {
-        var link = node.href;
+        var link = node.url;
         var definition;
         var index;
         var uri;
@@ -164,7 +164,7 @@ function gatherReferences(file, project) {
 
         if (node.identifier) {
             definition = getDefinition(node.identifier);
-            link = definition && definition.link;
+            link = definition && definition.url;
         }
 
         /*
diff --git a/package.json b/package.json
index 06575b9..e42bec4 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   ],
   "dependencies": {
     "github-url-to-object": "^2.1.0",
-    "remark-slug": "^4.0.0",
+    "remark-slug": "^4.1.0",
     "mdast-util-definitions": "^1.0.0",
     "unist-util-visit": "^1.0.0",
     "propose": "0.0.5",
@@ -34,11 +34,11 @@
     "istanbul": "^0.4.0",
     "jscs": "^2.0.0",
     "jscs-jsdoc": "^1.0.0",
-    "remark": "^3.0.0",
-    "remark-comment-config": "^2.0.0",
-    "remark-github": "^4.0.0",
-    "remark-lint": "^2.0.0",
-    "remark-toc": "^2.0.0",
+    "remark": "^4.0.0-alpha.1",
+    "remark-comment-config": "^3.0.0",
+    "remark-github": "^4.0.1",
+    "remark-lint": "^3.0.0",
+    "remark-toc": "^3.0.0",
     "tape": "^4.0.0"
   },
   "scripts": {