diff --git a/package.json b/package.json
index 15e8668..2182354 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,7 @@
     "eslint-plugin-class-property": "^1.1.0",
     "eslint-plugin-react": "^7.9.1",
     "file-loader": "^1.1.5",
+    "fsevents": "^1.2.4",
     "json-loader": "^0.5.7",
     "less": "^2.7.3",
     "less-loader": "^4.0.5",
diff --git a/yarn.lock b/yarn.lock
index c4e1aca..5f169df 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1754,6 +1754,10 @@ decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
 
+deep-extend@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
+
 deep-extend@~0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
@@ -2465,6 +2469,13 @@ fsevents@^1.1.2:
     nan "^2.9.2"
     node-pre-gyp "^0.9.0"
 
+fsevents@^1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.4.tgz#f41dcb1af2582af3692da36fc55cbd8e1041c426"
+  dependencies:
+    nan "^2.9.2"
+    node-pre-gyp "^0.10.0"
+
 function-bind@^1.0.2, function-bind@^1.1.0, function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
@@ -3652,6 +3663,14 @@ needle@^2.2.0:
     iconv-lite "^0.4.4"
     sax "^1.2.4"
 
+needle@^2.2.1:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/needle/-/needle-2.2.3.tgz#c1b04da378cd634d8befe2de965dc2cfb0fd65ca"
+  dependencies:
+    debug "^2.1.2"
+    iconv-lite "^0.4.4"
+    sax "^1.2.4"
+
 neo-async@^2.5.0:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.1.tgz#acb909e327b1e87ec9ef15f41b8a269512ad41ee"
@@ -3695,6 +3714,21 @@ node-libs-browser@^2.0.0:
     util "^0.10.3"
     vm-browserify "0.0.4"
 
+node-pre-gyp@^0.10.0:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.3.tgz#3070040716afdc778747b61b6887bf78880b80fc"
+  dependencies:
+    detect-libc "^1.0.2"
+    mkdirp "^0.5.1"
+    needle "^2.2.1"
+    nopt "^4.0.1"
+    npm-packlist "^1.1.6"
+    npmlog "^4.0.2"
+    rc "^1.2.7"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^4"
+
 node-pre-gyp@^0.9.0:
   version "0.9.1"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.9.1.tgz#f11c07516dd92f87199dbc7e1838eab7cd56c9e0"
@@ -4466,6 +4500,15 @@ rc@^1.1.7:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
+rc@^1.2.7:
+  version "1.2.8"
+  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
+  dependencies:
+    deep-extend "^0.6.0"
+    ini "~1.3.0"
+    minimist "^1.2.0"
+    strip-json-comments "~2.0.1"
+
 react-dom@^16.4.0:
   version "16.4.0"
   resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.4.0.tgz#099f067dd5827ce36a29eaf9a6cdc7cbf6216b1e"