diff --git a/package.json b/package.json
index ad653b5..a77d970 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "on-build-webpack": "^0.1.0",
     "postcss-cssnext": "^3.0.2",
     "postcss-import": "^11.0.0",
-    "postcss-loader": "^2.0.8",
+    "postcss-loader": "^2.1.4",
     "query-string": "^5.0.0",
     "resolve-url-loader": "^2.2.0",
     "rollbar-sourcemap-webpack-plugin": "^2.2.0",
diff --git a/yarn.lock b/yarn.lock
index e65ba78..5e36872 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -81,6 +81,10 @@ ajv-keywords@^1.0.0, ajv-keywords@^1.1.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-1.5.1.tgz#314dd0a4b3368fad3dfcdc54ede6171b886daf3c"
 
+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@^4.7.0, ajv@^4.9.1:
   version "4.11.7"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.7.tgz#8655a5d86d0824985cc471a1d913fb6729a0ec48"
@@ -97,6 +101,15 @@ ajv@^5.0.0, ajv@^5.2.0:
     json-schema-traverse "^0.3.0"
     json-stable-stringify "^1.0.1"
 
+ajv@^6.1.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.4.0.tgz#d3aff78e9277549771daf0164cff48482b754fc6"
+  dependencies:
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+    uri-js "^3.0.2"
+
 align-text@^0.1.1, align-text@^0.1.3:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
@@ -2891,6 +2904,10 @@ fast-deep-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
 
+fast-json-stable-stringify@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
+
 fast-levenshtein@~2.0.4:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
@@ -6343,14 +6360,14 @@ postcss-load-plugins@^2.3.0:
     cosmiconfig "^2.1.1"
     object-assign "^4.1.0"
 
-postcss-loader@^2.0.8:
-  version "2.0.8"
-  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-2.0.8.tgz#8c67ddb029407dfafe684a406cfc16bad2ce0814"
+postcss-loader@^2.1.4:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-2.1.4.tgz#f44a6390e03c84108b2b2063182d1a1011b2ce76"
   dependencies:
     loader-utils "^1.1.0"
     postcss "^6.0.0"
     postcss-load-config "^1.2.0"
-    schema-utils "^0.3.0"
+    schema-utils "^0.4.0"
 
 postcss-media-minmax@^3.0.0:
   version "3.0.0"
@@ -6698,15 +6715,7 @@ postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0
     source-map "^0.5.6"
     supports-color "^3.2.3"
 
-postcss@^6.0.0, postcss@^6.0.1, postcss@^6.0.11, postcss@^6.0.3, postcss@^6.0.5, postcss@^6.0.6:
-  version "6.0.11"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.11.tgz#f48db210b1d37a7f7ab6499b7a54982997ab6f72"
-  dependencies:
-    chalk "^2.1.0"
-    source-map "^0.5.7"
-    supports-color "^4.4.0"
-
-postcss@^6.0.13:
+postcss@^6.0.0, postcss@^6.0.1, postcss@^6.0.11, postcss@^6.0.13, postcss@^6.0.3, postcss@^6.0.5, postcss@^6.0.6:
   version "6.0.13"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.13.tgz#b9ecab4ee00c89db3ec931145bd9590bbf3f125f"
   dependencies:
@@ -6840,6 +6849,10 @@ punycode@^1.2.4, punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
 
+punycode@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
+
 q@^1.1.2:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.0.tgz#dd01bac9d06d30e6f219aecb8253ee9ebdc308f1"
@@ -7614,6 +7627,13 @@ schema-utils@^0.3.0:
   dependencies:
     ajv "^5.0.0"
 
+schema-utils@^0.4.0:
+  version "0.4.5"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.5.tgz#21836f0608aac17b78f9e3e24daff14a5ca13a3e"
+  dependencies:
+    ajv "^6.1.0"
+    ajv-keywords "^3.1.0"
+
 sdp@^1.0.0:
   version "1.5.4"
   resolved "https://registry.yarnpkg.com/sdp/-/sdp-1.5.4.tgz#8e038f6ddb14bd765ae1f4b5216e12094511e0d0"
@@ -7844,7 +7864,7 @@ source-map@0.5.6, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
   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@^0.5.7, source-map@~0.5.3:
+source-map@0.5.x, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
@@ -8459,6 +8479,12 @@ upper-case@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/upper-case/-/upper-case-1.1.3.tgz#f6b4501c2ec4cdd26ba78be7222961de77621598"
 
+uri-js@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/uri-js/-/uri-js-3.0.2.tgz#f90b858507f81dea4dcfbb3c4c3dbfa2b557faaa"
+  dependencies:
+    punycode "^2.1.0"
+
 urix@^0.1.0, urix@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"