diff --git a/package.json b/package.json
index 5e53db4315..292e19e306 100644
--- a/package.json
+++ b/package.json
@@ -26,8 +26,8 @@
     "express": "^4.13.3",
     "js-yaml": "^3.13.1",
     "less": "^2.7.1",
-    "react": "15.3.1",
-    "react-dom": "15.3.1",
+    "react": "16.12.0",
+    "react-dom": "16.12.0",
     "sane": "^1.2.0",
     "webpack": "^1.12.1"
   },
@@ -36,6 +36,7 @@
     "codemirror-graphql": "^0.5.7",
     "graphql": "^0.7.0",
     "graphql-tools": "^0.6.6",
-    "marked": "^0.3.5"
+    "marked": "^0.3.5",
+    "react-dom-factories": "^1.0.2"
   }
 }
diff --git a/site/_core/BlogSidebar.js b/site/_core/BlogSidebar.js
index 53f96d09f8..e96809a8a8 100644
--- a/site/_core/BlogSidebar.js
+++ b/site/_core/BlogSidebar.js
@@ -9,23 +9,32 @@
 var path = require('path');
 var React = require('react');
 
-module.exports = ({ site, page }) =>
+module.exports = ({ site, page }) => (
   <div className="nav-docs">
     <div className="nav-docs-section">
       <h3>Subscribe</h3>
-      <a rel="home" type="application/rss+xml" href="/blog/rss.xml">RSS</a>
+      <a rel="home" type="application/rss+xml" href="/blog/rss.xml">
+        RSS
+      </a>
     </div>
     <div className="nav-docs-section">
       <h3>Recent Posts</h3>
       <ul>
         {site.files.blog
-          .filter(file => !file.draft && path.extname(file.relPath) === '.md')
+          .filter(file => !file.draft && path.extname(file.relPath) === ".md")
           .sort((a, b) => a.date < b.date)
-          .map(post =>
+          .map((post, i) => (
             <li key={post.permalink}>
-              {post === page ? post.title : <a href={post.url}>{post.title}</a>}
+              {post === page ? (
+                post.title
+              ) : (
+                <a href={post.url} key={i}>
+                  {post.title}
+                </a>
+              )}
             </li>
-        )}
+          ))}
       </ul>
     </div>
   </div>
+);
diff --git a/site/_core/DocsSidebar.js b/site/_core/DocsSidebar.js
index 6acff72ce6..df72f2442f 100644
--- a/site/_core/DocsSidebar.js
+++ b/site/_core/DocsSidebar.js
@@ -11,11 +11,12 @@ import { toSlug } from './Header';
 
 export default ({ site, page, firstURL }) =>
   <div className="nav-docs">
-    {getCategories(site, page.dir, firstURL).map(category =>
+    {getCategories(site, page.dir, firstURL).map((category, i) =>
       <SidebarForCategory
         category={category}
         key={category.name}
         pageID={page.id}
+        key={i}
       />
     )}
   </div>
diff --git a/site/_core/HeaderLinks.js b/site/_core/HeaderLinks.js
index 2b2e16c5fe..6df35e5891 100644
--- a/site/_core/HeaderLinks.js
+++ b/site/_core/HeaderLinks.js
@@ -20,13 +20,14 @@ const links = [
 
 export default ({ section }) =>
   <nav>
-    {links.map(link =>
+    {links.map((link, i) =>
       <a
         key={link.section}
         href={link.href}
         target={link.href.slice(0, 4) === 'http' ? '_blank' : null}
         rel={link.href.slice(0, 4) === 'http' ? 'noopener noreferrer' : null}
-        className={link.section === section ? 'active' : null}>
+        className={link.section === section ? 'active' : null}
+        key={i}>
         {link.text}
       </a>
     )}
diff --git a/site/_core/Marked.js b/site/_core/Marked.js
index b47ad11cbd..ef689d2f55 100644
--- a/site/_core/Marked.js
+++ b/site/_core/Marked.js
@@ -5,6 +5,7 @@
 */
 
 var React = require('react');
+var DOM = require('react-dom-factories');
 var Prism = require('./Prism');
 import Header from './Header';
 
@@ -583,7 +584,7 @@ InlineLexer.prototype.output = function(src) {
         text = cap[1];
         href = text;
       }
-      out.push(React.DOM.a({href: this.sanitizeUrl(href)}, text));
+      out.push(DOM.a({href: this.sanitizeUrl(href)}, text));
       continue;
     }
 
@@ -592,7 +593,7 @@ InlineLexer.prototype.output = function(src) {
       src = src.substring(cap[0].length);
       text = cap[1];
       href = text;
-      out.push(React.DOM.a({href: this.sanitizeUrl(href)}, text));
+      out.push(DOM.a({href: this.sanitizeUrl(href)}, text));
       continue;
     }
 
@@ -632,35 +633,35 @@ InlineLexer.prototype.output = function(src) {
     // strong
     if (cap = this.rules.strong.exec(src)) {
       src = src.substring(cap[0].length);
-      out.push(React.DOM.strong(null, this.output(cap[2] || cap[1])));
+      out.push(DOM.strong(null, this.output(cap[2] || cap[1])));
       continue;
     }
 
     // em
     if (cap = this.rules.em.exec(src)) {
       src = src.substring(cap[0].length);
-      out.push(React.DOM.em(null, this.output(cap[2] || cap[1])));
+      out.push(DOM.em(null, this.output(cap[2] || cap[1])));
       continue;
     }
 
     // code
     if (cap = this.rules.code.exec(src)) {
       src = src.substring(cap[0].length);
-      out.push(React.DOM.code(null, cap[2]));
+      out.push(DOM.code(null, cap[2]));
       continue;
     }
 
     // br
     if (cap = this.rules.br.exec(src)) {
       src = src.substring(cap[0].length);
-      out.push(React.DOM.br(null, null));
+      out.push(DOM.br(null, null));
       continue;
     }
 
     // del (gfm)
     if (cap = this.rules.del.exec(src)) {
       src = src.substring(cap[0].length);
-      out.push(React.DOM.del(null, this.output(cap[1])));
+      out.push(DOM.del(null, this.output(cap[1])));
       continue;
     }
 
@@ -710,14 +711,14 @@ InlineLexer.prototype.outputLink = function(cap, link) {
       link.href.charAt(0) !== '/'
       && link.href.charAt(0) !== '#';
 
-    return React.DOM.a({
+    return DOM.a({
       href: this.sanitizeUrl(link.href),
       title: link.title,
       target: shouldOpenInNewWindow ? '_blank' : null,
       rel: shouldOpenInNewWindow ? 'nofollow noopener noreferrer' : null
     }, this.output(cap[1]));
   } else {
-    return React.DOM.img({
+    return DOM.img({
       src: this.sanitizeUrl(link.href),
       alt: cap[1],
       title: link.title
@@ -814,7 +815,7 @@ Parser.prototype.tok = function() {
       return [];
     }
     case 'hr': {
-      return React.DOM.hr(null, null);
+      return DOM.hr(null, null);
     }
     case 'heading': {
       return (
@@ -860,32 +861,32 @@ Parser.prototype.tok = function() {
       // header
       for (i = 0; i < this.token.header.length; i++) {
         heading = this.inline.output(this.token.header[i]);
-        row.push(React.DOM.th(
+        row.push(DOM.th(
           this.token.align[i]
             ? {style: {textAlign: this.token.align[i]}}
             : null,
           heading
         ));
       }
-      table.push(React.DOM.thead(null, React.DOM.tr(null, row)));
+      table.push(DOM.thead(null, DOM.tr(null, row)));
 
       // body
       for (i = 0; i < this.token.cells.length; i++) {
         row = [];
         cells = this.token.cells[i];
         for (j = 0; j < cells.length; j++) {
-          row.push(React.DOM.td(
+          row.push(DOM.td(
             this.token.align[j]
               ? {style: {textAlign: this.token.align[j]}}
               : null,
             this.inline.output(cells[j])
           ));
         }
-        body.push(React.DOM.tr(null, row));
+        body.push(DOM.tr(null, row));
       }
-      table.push(React.DOM.thead(null, body));
+      table.push(DOM.thead(null, body));
 
-      return React.DOM.table(null, table);
+      return DOM.table(null, table);
     }
     case 'blockquote_start': {
       var body = [];
@@ -894,7 +895,7 @@ Parser.prototype.tok = function() {
         body.push(this.tok());
       }
 
-      return React.DOM.blockquote(null, body);
+      return DOM.blockquote(null, body);
     }
     case 'list_start': {
       var type = this.token.ordered ? 'ol' : 'ul'
@@ -904,7 +905,7 @@ Parser.prototype.tok = function() {
         body.push(this.tok());
       }
 
-      return React.DOM[type](null, body);
+      return DOM[type](null, body);
     }
     case 'list_item_start': {
       var body = [];
@@ -915,7 +916,7 @@ Parser.prototype.tok = function() {
           : this.tok());
       }
 
-      return React.DOM.li(null, body);
+      return DOM.li(null, body);
     }
     case 'loose_item_start': {
       var body = [];
@@ -924,10 +925,10 @@ Parser.prototype.tok = function() {
         body.push(this.tok());
       }
 
-      return React.DOM.li(null, body);
+      return DOM.li(null, body);
     }
     case 'html': {
-      return React.DOM.div({
+      return DOM.div({
         dangerouslySetInnerHTML: {
           __html: this.token.text
         }
@@ -936,12 +937,12 @@ Parser.prototype.tok = function() {
     case 'paragraph': {
       return this.options.paragraphFn
         ? this.options.paragraphFn.call(null, this.inline.output(this.token.text))
-        : React.DOM.p(null, this.inline.output(this.token.text));
+        : DOM.p(null, this.inline.output(this.token.text));
     }
     case 'text': {
       return this.options.paragraphFn
         ? this.options.paragraphFn.call(null, this.parseText())
-        : React.DOM.p(null, this.parseText());
+        : DOM.p(null, this.parseText());
     }
   }
 };
@@ -1067,8 +1068,8 @@ function marked(src, opt, callback) {
   } catch (e) {
     e.message += '\nPlease report this to https://github.com/chjj/marked.';
     if ((opt || marked.defaults).silent) {
-      return [React.DOM.p(null, "An error occurred:"),
-        React.DOM.pre(null, e.message)];
+      return [DOM.p(null, "An error occurred:"),
+        DOM.pre(null, e.message)];
     }
     throw e;
   }
diff --git a/site/_core/Prism.js b/site/_core/Prism.js
index e9e5d2f3f2..34cbd7f938 100644
--- a/site/_core/Prism.js
+++ b/site/_core/Prism.js
@@ -1,4 +1,5 @@
 var React = require('react');
+var DOM = require('react-dom-factories');
 
 export default function PrismComponent(props) {
   const lines = [];
@@ -520,7 +521,7 @@ Token.reactify = function(o, language, parent, key) {
 
   env.attributes.className = env.classes.join(' ');
 
-  return React.DOM[env.tag](env.attributes, env.content);
+  return DOM[env.tag](env.attributes, env.content);
 };
 
 Prism.languages.markup = {
diff --git a/yarn.lock b/yarn.lock
index 92e5305ea8..b44899e230 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -921,13 +921,6 @@ encodeurl@~1.0.2:
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
   integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
 
-encoding@^0.1.11:
-  version "0.1.12"
-  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
-  integrity sha1-U4tm8+5izRq1HsMjgp0flIDHS+s=
-  dependencies:
-    iconv-lite "~0.4.13"
-
 enhanced-resolve@~0.9.0:
   version "0.9.1"
   resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-0.9.1.tgz#4d6e689b3725f86090927ccc86cd9f1635b89e2e"
@@ -1117,19 +1110,6 @@ fb-watchman@^2.0.0:
   dependencies:
     bser "^2.0.0"
 
-fbjs@^0.8.4:
-  version "0.8.17"
-  resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.17.tgz#c4d598ead6949112653d6588b01a5cdcd9f90fdd"
-  integrity sha1-xNWY6taUkRJlPWWIsBpc3Nn5D90=
-  dependencies:
-    core-js "^1.0.0"
-    isomorphic-fetch "^2.1.1"
-    loose-envify "^1.0.0"
-    object-assign "^4.1.0"
-    promise "^7.1.1"
-    setimmediate "^1.0.5"
-    ua-parser-js "^0.7.18"
-
 filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
@@ -1446,7 +1426,7 @@ iconv-lite@0.4.23:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-iconv-lite@^0.4.4, iconv-lite@^0.4.5, iconv-lite@~0.4.13:
+iconv-lite@^0.4.4, iconv-lite@^0.4.5:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -1669,11 +1649,6 @@ is-primitive@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
   integrity sha1-IHurkWOEmcB7Kt8kCkGochADRXU=
 
-is-stream@^1.0.1:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
-  integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
-
 is-typedarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
@@ -1701,14 +1676,6 @@ isobject@^3.0.0, isobject@^3.0.1:
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
   integrity sha1-TkMekrEalzFjaqH5yNHMvP2reN8=
 
-isomorphic-fetch@^2.1.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
-  integrity sha1-YRrhrPFPXoH3KVB0coGf6XM1WKk=
-  dependencies:
-    node-fetch "^1.0.1"
-    whatwg-fetch ">=0.10.0"
-
 isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
@@ -1869,7 +1836,7 @@ longest@^1.0.1:
   resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
   integrity sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=
 
-loose-envify@^1.0.0, loose-envify@^1.1.0:
+loose-envify@^1.1.0, loose-envify@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
   integrity sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==
@@ -2098,14 +2065,6 @@ negotiator@0.6.1:
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
   integrity sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=
 
-node-fetch@^1.0.1:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
-  integrity sha512-NhZ4CsKx7cYm2vSrBAr2PvFOe6sWDf0UYLRqA6svUYg7+/TSfVAu49jYC4BvQ4Sms9SZgdqGBgroqfDhJdTyKQ==
-  dependencies:
-    encoding "^0.1.11"
-    is-stream "^1.0.1"
-
 node-int64@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/node-int64/-/node-int64-0.4.0.tgz#87a9065cdb355d3182d8f94ce11188b825c68a3b"
@@ -2214,7 +2173,7 @@ object-assign@^3.0.0:
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-3.0.0.tgz#9bedd5ca0897949bca47e7ff408062d549f587f2"
   integrity sha1-m+3VygiXlJvKR+f/QIBi1Un1h/I=
 
-object-assign@^4.0.1, object-assign@^4.1.0:
+object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
   integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
@@ -2403,6 +2362,15 @@ promise@^7.1.1:
   dependencies:
     asap "~2.0.3"
 
+prop-types@^15.6.2:
+  version "15.7.2"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.7.2.tgz#52c41e75b8c87e72b9d9360e0206b99dcbffa6c5"
+  integrity sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==
+  dependencies:
+    loose-envify "^1.4.0"
+    object-assign "^4.1.1"
+    react-is "^16.8.1"
+
 proxy-addr@~2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.4.tgz#ecfc733bf22ff8c6f407fa275327b9ab67e48b93"
@@ -2485,19 +2453,34 @@ rc@^1.2.7:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
-react-dom@15.3.1:
-  version "15.3.1"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-15.3.1.tgz#6d42cd2b64c8c5e0b693f3ffaec301e6e627e24e"
-  integrity sha1-bULNK2TIxeC2k/P/rsMB5uYn4k4=
+react-dom-factories@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/react-dom-factories/-/react-dom-factories-1.0.2.tgz#eb7705c4db36fb501b3aa38ff759616aa0ff96e0"
+  integrity sha1-63cFxNs2+1AbOqOP91lhaqD/luA=
 
-react@15.3.1:
-  version "15.3.1"
-  resolved "https://registry.yarnpkg.com/react/-/react-15.3.1.tgz#f78501ed8c2ec6e6e31c3223652e97f1369d2bd6"
-  integrity sha1-94UB7YwuxubjHDIjZS6X8TadK9Y=
+react-dom@16.12.0:
+  version "16.12.0"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.12.0.tgz#0da4b714b8d13c2038c9396b54a92baea633fe11"
+  integrity sha512-LMxFfAGrcS3kETtQaCkTKjMiifahaMySFDn71fZUNpPHZQEzmk/GiAeIT8JSOrHB23fnuCOMruL2a8NYlw+8Gw==
   dependencies:
-    fbjs "^0.8.4"
     loose-envify "^1.1.0"
-    object-assign "^4.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+    scheduler "^0.18.0"
+
+react-is@^16.8.1:
+  version "16.12.0"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.12.0.tgz#2cc0fe0fba742d97fd527c42a13bec4eeb06241c"
+  integrity sha512-rPCkf/mWBtKc97aLL9/txD8DZdemK0vkA3JMLShjlJB3Pj3s+lpf1KaBzMfQrAmhMQB0n1cU/SUGgKKBCe837Q==
+
+react@16.12.0:
+  version "16.12.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-16.12.0.tgz#0c0a9c6a142429e3614834d5a778e18aa78a0b83"
+  integrity sha512-fglqy3k5E+81pA8s+7K0/T3DBCF0ZDOher1elBFzF7O6arXJgzyu/FW+COxFvAWXJoJN9KIZbT2LXlukwphYTA==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
 
 readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.3.6:
   version "2.3.6"
@@ -2727,6 +2710,14 @@ sax@^1.2.4:
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
+scheduler@^0.18.0:
+  version "0.18.0"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.18.0.tgz#5901ad6659bc1d8f3fdaf36eb7a67b0d6746b1c4"
+  integrity sha512-agTSHR1Nbfi6ulI0kYNK0203joW2Y5W4po4l+v03tOoiJKpTBbxpNhWDvqc/4IcOw+KLmSiQLTasZ4cab2/UWQ==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+
 semver@^5.3.0:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
@@ -2786,7 +2777,7 @@ set-value@^2.0.0:
     is-plain-object "^2.0.3"
     split-string "^3.0.1"
 
-setimmediate@^1.0.4, setimmediate@^1.0.5:
+setimmediate@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
   integrity sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=
@@ -3171,11 +3162,6 @@ type-is@~1.6.16:
     media-typer "0.3.0"
     mime-types "~2.1.18"
 
-ua-parser-js@^0.7.18:
-  version "0.7.19"
-  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.19.tgz#94151be4c0a7fb1d001af7022fdaca4642659e4b"
-  integrity sha512-T3PVJ6uz8i0HzPxOF9SWzWAlfN/DavlpQqepn22xgve/5QecC+XMCAtmUNnY7C9StehaV6exjUCI801lOI7QlQ==
-
 uglify-js@~2.7.3:
   version "2.7.5"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.7.5.tgz#4612c0c7baaee2ba7c487de4904ae122079f2ca8"
@@ -3337,11 +3323,6 @@ webpack@^1.12.1:
     watchpack "^0.2.1"
     webpack-core "~0.6.9"
 
-whatwg-fetch@>=0.10.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz#fc804e458cc460009b1a2b966bc8817d2578aefb"
-  integrity sha512-9GSJUgz1D4MfyKU7KRqwOjXCXTqWdFNvEr7eUBYchQiVc744mqK/MzXPNR2WsPkmkOa4ywfg8C2n8h+13Bey1Q==
-
 wide-align@^1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.3.tgz#ae074e6bdc0c14a431e804e624549c633b000457"