diff --git a/build/flow-remove-types.js b/build/flow-remove-types.js
new file mode 100644
index 00000000000..e67a9200924
--- /dev/null
+++ b/build/flow-remove-types.js
@@ -0,0 +1,68 @@
+/*
+ * Temporary patch to work around
+ * https://github.com/standard-things/esm/issues/119.
+ *
+ * Upstream PR: https://github.com/flowtype/flow-remove-types/pull/62
+ */
+
+var flowRemoveTypes = require('flow-remove-types');
+var pirates = require('pirates');
+
+// Supported options:
+//
+//   - all: Transform all files, not just those with a @flow comment.
+//   - includes: A Regexp/String to determine which files should be transformed.
+//               (alias: include)
+//   - excludes: A Regexp/String to determine which files should not be
+//               transformed, defaults to ignoring /node_modules/, provide null
+//               to exclude nothing. (alias: exclude)
+var options;
+module.exports = function setOptions(newOptions) {
+  options = newOptions;
+}
+
+var jsLoader = require.extensions['.js'];
+var exts = [ '.js', '.mjs', '.jsx', '.flow', '.es6' ];
+
+var revert = pirates.addHook(function hook(code, filename) {
+  try {
+    var patched = flowRemoveTypes(code, options);
+    return patched.toString();
+  }
+  catch (e) {
+    e.message = filename + ': ' + e.message;
+    throw e;
+  }
+}, { exts, matcher: shouldTransform });
+
+function shouldTransform(filename) {
+  var includes = options && regexpPattern(options.includes || options.include);
+  var excludes =
+    options && 'excludes' in options ? regexpPattern(options.excludes) :
+    options && 'exclude' in options ? regexpPattern(options.exclude) :
+    /\/node_modules\//;
+  return (!includes || includes.test(filename)) && !(excludes && excludes.test(filename));
+}
+
+// Given a null | string | RegExp | any, returns null | Regexp or throws a
+// more helpful error.
+function regexpPattern(pattern) {
+  if (!pattern) {
+    return pattern;
+  }
+  // A very simplified glob transform which allows passing legible strings like
+  // "myPath/*.js" instead of a harder to read RegExp like /\/myPath\/.*\.js/.
+  if (typeof pattern === 'string') {
+    pattern = pattern.replace(/\./g, '\\.').replace(/\*/g, '.*');
+    if (pattern[0] !== '/') {
+      pattern = '/' + pattern;
+    }
+    return new RegExp(pattern);
+  }
+  if (typeof pattern.test === 'function') {
+    return pattern;
+  }
+  throw new Error(
+    'flow-remove-types: includes and excludes must be RegExp or path strings. Got: ' + pattern
+  );
+}
diff --git a/package.json b/package.json
index 020923521e1..49cc3226764 100644
--- a/package.json
+++ b/package.json
@@ -84,6 +84,7 @@
     "npm-run-all": "^4.0.1",
     "nyc": "^10.1.2",
     "object.entries": "^1.0.4",
+    "pirates": "^3.0.2",
     "pngjs": "^3.0.0",
     "prismjs": "^1.8.1",
     "prop-types": "^15.6.0",
diff --git a/yarn.lock b/yarn.lock
index 911f8637f7a..527219812f3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6861,6 +6861,10 @@ node-libs-browser@^2.0.0:
     util "^0.10.3"
     vm-browserify "0.0.4"
 
+node-modules-regexp@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/node-modules-regexp/-/node-modules-regexp-1.0.0.tgz#8d9dbe28964a4ac5712e9131642107c71e90ec40"
+
 node-pre-gyp@^0.6.39:
   version "0.6.39"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
@@ -7540,6 +7544,12 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
+pirates@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/pirates/-/pirates-3.0.2.tgz#7e6f85413fd9161ab4e12b539b06010d85954bb9"
+  dependencies:
+    node-modules-regexp "^1.0.0"
+
 pixelmatch@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/pixelmatch/-/pixelmatch-4.0.2.tgz#8f47dcec5011b477b67db03c243bc1f3085e8854"