diff --git a/package.json b/package.json
index 40cd307f6..191ade039 100644
--- a/package.json
+++ b/package.json
@@ -65,7 +65,7 @@
     "eslint-plugin-import": "^2.7.0",
     "eslint-plugin-jsx-a11y": "^6.0.2",
     "eslint-plugin-react": "^7.4.0",
-    "extract-text-webpack-plugin": "2.1.0",
+    "extract-text-webpack-plugin": "3.0.0",
     "file-loader": "0.11.1",
     "fs-extra": "3.0.1",
     "html-webpack-plugin": "2.28.0",
diff --git a/yarn.lock b/yarn.lock
index feb19ad5c..15e965227 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -407,7 +407,7 @@ ajv-keywords@^3.0.0, ajv-keywords@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
 
-ajv@^4.11.2, ajv@^4.9.1:
+ajv@^4.9.1:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
   dependencies:
@@ -704,7 +704,7 @@ async@^1.4.0, async@^1.5.0, async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
-async@^2.1.2, async@^2.1.4:
+async@^2.1.2, async@^2.1.4, async@^2.4.1:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.0.tgz#61a29abb6fcc026fea77e56d1c6ec53a795951f4"
   dependencies:
@@ -3868,14 +3868,14 @@ extglob@^2.0.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-extract-text-webpack-plugin@2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/extract-text-webpack-plugin/-/extract-text-webpack-plugin-2.1.0.tgz#69315b885f876dbf96d3819f6a9f1cca7aebf159"
+extract-text-webpack-plugin@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/extract-text-webpack-plugin/-/extract-text-webpack-plugin-3.0.0.tgz#90caa7907bc449f335005e3ac7532b41b00de612"
   dependencies:
-    ajv "^4.11.2"
-    async "^2.1.2"
-    loader-utils "^1.0.2"
-    webpack-sources "^0.1.0"
+    async "^2.4.1"
+    loader-utils "^1.1.0"
+    schema-utils "^0.3.0"
+    webpack-sources "^1.0.1"
 
 extsprintf@1.3.0:
   version "1.3.0"
@@ -9148,7 +9148,7 @@ sort-keys@^1.0.0:
   dependencies:
     is-plain-obj "^1.0.0"
 
-source-list-map@^0.1.7, source-list-map@~0.1.7:
+source-list-map@^0.1.7:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-0.1.8.tgz#c550b2ab5427f6b3f21f5afead88c4f5587b2106"
 
@@ -9186,7 +9186,7 @@ source-map@0.5.6:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
-source-map@0.5.x, source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.0, source-map@~0.5.1, source-map@~0.5.3:
+source-map@0.5.x, source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.0, source-map@~0.5.1:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
@@ -10344,13 +10344,6 @@ webpack-manifest-plugin@^1.3.2:
     fs-extra "^0.30.0"
     lodash ">=3.5 <5"
 
-webpack-sources@^0.1.0:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-0.1.5.tgz#aa1f3abf0f0d74db7111c40e500b84f966640750"
-  dependencies:
-    source-list-map "~0.1.7"
-    source-map "~0.5.3"
-
 webpack-sources@^1.0.1, webpack-sources@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"