diff --git a/package.json b/package.json
index 056c764f127f..4f801bb926a8 100644
--- a/package.json
+++ b/package.json
@@ -150,7 +150,7 @@
     "lodash.isequal": "^4.5.0",
     "lookup-closest-locale": "6.0.4",
     "metaviewport-parser": "0.2.0",
-    "mkdirp": "0.5.1",
+    "mkdirp": "1.0.0",
     "opn": "4.0.2",
     "parse-cache-control": "1.0.1",
     "raven": "^2.2.1",
diff --git a/yarn.lock b/yarn.lock
index 859adc617750..314cb017ded2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6134,6 +6134,11 @@ mkdirp@0.5.1, mkdirp@^0.5.0, mkdirp@^0.5.1:
   dependencies:
     minimist "0.0.8"
 
+mkdirp@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.0.tgz#8487b07699b70c9b06fce47b3ce28d8176c13c75"
+  integrity sha512-4Pb+8NJ5DdvaWD797hKOM28wMXsObb4HppQdIwKUHFiB69ICZ4wktOE+qsGGBy7GtwgYNizp0R9KEy4zKYBLMg==
+
 mocha@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.2.0.tgz#7dc4f45e5088075171a68896814e6ae9eb7a85e3"