diff --git a/package.json b/package.json
index 54ed641..99b4cea 100644
--- a/package.json
+++ b/package.json
@@ -80,7 +80,7 @@
     "jest": "^22.2.2",
     "lint-staged": "^3.4.0",
     "null-loader": "^0.1.1",
-    "postcss": "^6.0.0",
+    "postcss": "^7.0.36",
     "postcss-cssnext": "^2.10.0",
     "pre-commit": "^1.2.0",
     "rimraf": "^2.6.0",
diff --git a/yarn.lock b/yarn.lock
index b6f496b..d9a17bb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -185,12 +185,18 @@ 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@^3.2.0:
   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:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  dependencies:
+    color-convert "^1.9.0"
+
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
@@ -1262,21 +1268,13 @@ chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.0.0:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.1.tgz#523fe2678aec7b04e8041909292fe8b17059b796"
-  dependencies:
-    ansi-styles "^3.2.0"
-    escape-string-regexp "^1.0.5"
-    supports-color "^5.2.0"
-
-chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.0.tgz#b5ea48efc9c1793dccc9b4767c93914d3f2d52ba"
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.4.2:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
   dependencies:
-    ansi-styles "^3.1.0"
+    ansi-styles "^3.2.1"
     escape-string-regexp "^1.0.5"
-    supports-color "^4.0.0"
+    supports-color "^5.3.0"
 
 chokidar@^1.6.0, chokidar@^1.7.0:
   version "1.7.0"
@@ -3708,7 +3706,7 @@ is-number@^3.0.0:
 
 is-obj@^1.0.0:
   version "1.0.1"
-  resolved "http://registry.npmjs.org/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
+  resolved "https://registry.npmjs.org/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
 
 is-path-cwd@^1.0.0:
   version "1.0.0"
@@ -5902,7 +5900,7 @@ postcss@^5.0.0, postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.
     source-map "^0.5.6"
     supports-color "^3.2.3"
 
-postcss@^6.0.0, postcss@^6.0.1:
+postcss@^6.0.1:
   version "6.0.14"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.14.tgz#5534c72114739e75d0afcf017db853099f562885"
   dependencies:
@@ -5910,6 +5908,14 @@ postcss@^6.0.0, postcss@^6.0.1:
     source-map "^0.6.1"
     supports-color "^4.4.0"
 
+postcss@^7.0.36:
+  version "7.0.36"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.36.tgz#056f8cffa939662a8f5905950c07d5285644dfcb"
+  dependencies:
+    chalk "^2.4.2"
+    source-map "^0.6.1"
+    supports-color "^6.1.0"
+
 pre-commit@^1.2.0:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/pre-commit/-/pre-commit-1.2.2.tgz#dbcee0ee9de7235e57f79c56d7ce94641a69eec6"
@@ -6179,7 +6185,7 @@ readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.6, readable
 
 readable-stream@^2.1.5:
   version "2.3.6"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
@@ -7141,15 +7147,21 @@ supports-color@^3.1.0, supports-color@^3.1.2, supports-color@^3.2.3:
   dependencies:
     has-flag "^1.0.0"
 
-supports-color@^4.0.0, supports-color@^4.2.1, supports-color@^4.4.0:
+supports-color@^4.2.1, supports-color@^4.4.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
   dependencies:
     has-flag "^2.0.0"
 
-supports-color@^5.2.0:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.2.0.tgz#b0d5333b1184dd3666cbe5aa0b45c5ac7ac17a4a"
+supports-color@^5.3.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  dependencies:
+    has-flag "^3.0.0"
+
+supports-color@^6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-6.1.0.tgz#0764abc69c63d5ac842dd4867e8d025e880df8f3"
   dependencies:
     has-flag "^3.0.0"