diff --git a/package-lock.json b/package-lock.json
index 6e9b0d8..f5b9cec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4440,11 +4440,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -4457,15 +4459,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4568,7 +4573,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4578,6 +4584,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4590,17 +4597,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -4617,6 +4627,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4689,7 +4700,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4699,6 +4711,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4804,6 +4817,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -9217,11 +9231,11 @@
       }
     },
     "postcss-import": {
-      "version": "11.1.0",
-      "resolved": "https://registry.npmjs.org/postcss-import/-/postcss-import-11.1.0.tgz",
-      "integrity": "sha512-5l327iI75POonjxkXgdRCUS+AlzAdBx4pOvMEhTKTCjb1p8IEeVR9yx3cPbmN7LIWJLbfnIXxAhoB4jpD0c/Cw==",
+      "version": "12.0.0",
+      "resolved": "https://registry.npmjs.org/postcss-import/-/postcss-import-12.0.0.tgz",
+      "integrity": "sha512-3KqKRZcaZAvxbY8DVLdd81tG5uKzbUQuiWIvy0o0fzEC42bKacqPYFWbfCQyw6L4LWUaqPz/idvIdbhpgQ32eQ==",
       "requires": {
-        "postcss": "^6.0.1",
+        "postcss": "^7.0.1",
         "postcss-value-parser": "^3.2.3",
         "read-cache": "^1.0.0",
         "resolve": "^1.1.7"
@@ -9246,9 +9260,9 @@
           }
         },
         "postcss": {
-          "version": "6.0.22",
-          "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.22.tgz",
-          "integrity": "sha512-Toc9lLoUASwGqxBSJGTVcOQiDqjK+Z2XlWBg+IgYwQMY9vA2f7iMpXVc1GpPcfTSyM5lkxNo0oDwDRO+wm7XHA==",
+          "version": "7.0.2",
+          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.2.tgz",
+          "integrity": "sha512-fmaUY5370keLUTx+CnwRxtGiuFTcNBLQBqr1oE3WZ/euIYmGAo0OAgOhVJ3ByDnVmOR3PK+0V9VebzfjRIUcqw==",
           "requires": {
             "chalk": "^2.4.1",
             "source-map": "^0.6.1",
@@ -9261,9 +9275,9 @@
           "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
         },
         "supports-color": {
-          "version": "5.4.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.4.0.tgz",
-          "integrity": "sha512-zjaXglF5nnWpsq470jSv6P9DwPvgLkuapYmfDm3JWOm0vkNTVF2tI4UrN2r6jH1qM/uc/WtxYY1hYoA2dOKj5w==",
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
           "requires": {
             "has-flag": "^3.0.0"
           }
diff --git a/package.json b/package.json
index 55cc0f2..0c30640 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "imports-loader": "^0.8.0",
     "plugin-error": "^1.0.1",
     "postcss-cssnext": "^3.1.0",
-    "postcss-import": "^11.1.0",
+    "postcss-import": "^12.0.0",
     "url-loader": "^1.0.1",
     "webpack": "4.6.0",
     "whatwg-fetch": "^2.0.4"
diff --git a/yarn.lock b/yarn.lock
index 58e67af..9e75f9a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5172,11 +5172,11 @@ postcss-image-set-polyfill@^0.3.5:
     postcss "^6.0.1"
     postcss-media-query-parser "^0.2.3"
 
-postcss-import@^11.1.0:
-  version "11.1.0"
-  resolved "https://registry.yarnpkg.com/postcss-import/-/postcss-import-11.1.0.tgz#55c9362c9192994ec68865d224419df1db2981f0"
+postcss-import@^12.0.0:
+  version "12.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-import/-/postcss-import-12.0.0.tgz#149f96a4ef0b27525c419784be8517ebd17e92c5"
   dependencies:
-    postcss "^6.0.1"
+    postcss "^7.0.1"
     postcss-value-parser "^3.2.3"
     read-cache "^1.0.0"
     resolve "^1.1.7"
@@ -5453,6 +5453,14 @@ postcss@^6.0, postcss@^6.0.0, postcss@^6.0.1, postcss@^6.0.11, postcss@^6.0.14,
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
+postcss@^7.0.1:
+  version "7.0.2"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.2.tgz#7b5a109de356804e27f95a960bef0e4d5bc9bb18"
+  dependencies:
+    chalk "^2.4.1"
+    source-map "^0.6.1"
+    supports-color "^5.4.0"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"