diff --git a/package.json b/package.json
index 28551c24df0..ef3e5ed9087 100644
--- a/package.json
+++ b/package.json
@@ -120,7 +120,7 @@
     "node-sass": "4.8.1",
     "postcss-cssnext": "3.1.0",
     "postcss-import": "11.1.0",
-    "postcss-loader": "2.1.1",
+    "postcss-loader": "2.1.2",
     "postcss-scss": "1.0.4",
     "prettier": "1.11.1",
     "raf": "3.4.0",
diff --git a/yarn.lock b/yarn.lock
index 84b59e45bf3..2cb40d3b9a2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -522,8 +522,8 @@ ajv@^5.0.0, ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
     json-schema-traverse "^0.3.0"
 
 ajv@^6.1.0:
-  version "6.2.0"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.2.0.tgz#afac295bbaa0152449e522742e4547c1ae9328d2"
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.3.0.tgz#1650a41114ef00574cac10b8032d8f4c14812da7"
   dependencies:
     fast-deep-equal "^1.0.0"
     fast-json-stable-stringify "^2.0.0"
@@ -577,13 +577,13 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-ansi-styles@^3.1.0, ansi-styles@^3.2.0:
+ansi-styles@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.0.tgz#c159b8d5be0f9e5a6f346dab94f16ce022161b88"
   dependencies:
     color-convert "^1.9.0"
 
-ansi-styles@^3.2.1:
+ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   dependencies:
@@ -2081,7 +2081,7 @@ chalk@2.3.0:
     escape-string-regexp "^1.0.5"
     supports-color "^4.0.0"
 
-chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.1:
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.1.tgz#523fe2678aec7b04e8041909292fe8b17059b796"
   dependencies:
@@ -2089,7 +2089,7 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.1:
     escape-string-regexp "^1.0.5"
     supports-color "^5.2.0"
 
-chalk@^2.3.0, chalk@^2.3.2:
+chalk@^2.3.0, chalk@^2.3.1, chalk@^2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.2.tgz#250dc96b07491bfd601e648d66ddf5f60c7a5c65"
   dependencies:
@@ -5649,13 +5649,20 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@3.x, js-yaml@^3.4.3, js-yaml@^3.9.0, js-yaml@^3.9.1:
+js-yaml@3.x, js-yaml@^3.9.0, js-yaml@^3.9.1:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.10.0.tgz#2e78441646bd4682e963f22b6e92823c309c62dc"
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@^3.4.3:
+  version "3.11.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
 js-yaml@~3.5.2:
   version "3.5.5"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.5.5.tgz#0377c38017cabc7322b0d1fbcd25a491641f2fbe"
@@ -7743,9 +7750,9 @@ postcss-load-plugins@^2.3.0:
     cosmiconfig "^2.1.1"
     object-assign "^4.1.0"
 
-postcss-loader@2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-2.1.1.tgz#208935af3b1d65e1abb1a870a912dd12e7b36895"
+postcss-loader@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-2.1.2.tgz#03f54e23be736c9ea4f610e17d2a299254c05130"
   dependencies:
     loader-utils "^1.1.0"
     postcss "^6.0.0"
@@ -7985,12 +7992,12 @@ postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0
     supports-color "^3.2.3"
 
 postcss@^6.0, postcss@^6.0.0, postcss@^6.0.1, postcss@^6.0.11, postcss@^6.0.13, postcss@^6.0.19, postcss@^6.0.5, postcss@^6.0.6:
-  version "6.0.19"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.19.tgz#76a78386f670b9d9494a655bf23ac012effd1555"
+  version "6.0.20"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.20.tgz#686107e743a12d5530cb68438c590d5b2bf72c3c"
   dependencies:
-    chalk "^2.3.1"
+    chalk "^2.3.2"
     source-map "^0.6.1"
-    supports-color "^5.2.0"
+    supports-color "^5.3.0"
 
 prebuild-install@^2.3.0:
   version "2.3.0"
@@ -9793,18 +9800,12 @@ supports-color@^4.0.0, supports-color@^4.2.1:
   dependencies:
     has-flag "^2.0.0"
 
-supports-color@^5.1.0, supports-color@^5.3.0:
+supports-color@^5.1.0, supports-color@^5.2.0, supports-color@^5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.3.0.tgz#5b24ac15db80fa927cf5227a4a33fd3c4c7676c0"
   dependencies:
     has-flag "^3.0.0"
 
-supports-color@^5.2.0:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.2.0.tgz#b0d5333b1184dd3666cbe5aa0b45c5ac7ac17a4a"
-  dependencies:
-    has-flag "^3.0.0"
-
 svgo@^0.7.0:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/svgo/-/svgo-0.7.2.tgz#9f5772413952135c6fefbf40afe6a4faa88b4bb5"