diff --git a/package-lock.json b/package-lock.json
index 15cd3bd..101b040 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7525,7 +7525,8 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -7837,12 +7838,12 @@
       }
     },
     "gonzales-pe": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/gonzales-pe/-/gonzales-pe-4.2.3.tgz",
-      "integrity": "sha512-Kjhohco0esHQnOiqqdJeNz/5fyPkOMD/d6XVjwTAoPGUFh0mCollPUTUTa2OZy4dYNAqlPIQdTiNzJTWdd9Htw==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/gonzales-pe/-/gonzales-pe-4.2.4.tgz",
+      "integrity": "sha512-v0Ts/8IsSbh9n1OJRnSfa7Nlxi4AkXIsWB6vPept8FDbL4bXn3FNuxjYtO/nmBGu7GDkL9MFeGebeSu6l55EPQ==",
       "dev": true,
       "requires": {
-        "minimist": "1.1.3"
+        "minimist": "1.1.x"
       },
       "dependencies": {
         "minimist": {
@@ -15363,13 +15364,63 @@
       }
     },
     "postcss-sass": {
-      "version": "0.3.0",
-      "resolved": "https://registry.npmjs.org/postcss-sass/-/postcss-sass-0.3.0.tgz",
-      "integrity": "sha512-nZJEFS2bT007CmzMjlZfZwcZKpSJ/JeFiVEdgrgvGZtAnORU+5BvN0cioNuDAVxwXHXp3hksCJzbZYPWkuw41Q==",
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/postcss-sass/-/postcss-sass-0.4.0.tgz",
+      "integrity": "sha512-doWwA/g45t0dJYrPK0alnV96yQhph3kY6vHtdGqIgjUgVAAL6LZyBA7m8nTuZINrUzGqTE6LqioXBNGAg35WMg==",
       "dev": true,
       "requires": {
-        "gonzales-pe": "4.2.3",
-        "postcss": "6.0.21"
+        "gonzales-pe": "^4.2.4",
+        "postcss": "^7.0.14"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          },
+          "dependencies": {
+            "supports-color": {
+              "version": "5.5.0",
+              "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+              "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+              "dev": true,
+              "requires": {
+                "has-flag": "^3.0.0"
+              }
+            }
+          }
+        },
+        "has-flag": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
+          "dev": true
+        },
+        "postcss": {
+          "version": "7.0.17",
+          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.17.tgz",
+          "integrity": "sha512-546ZowA+KZ3OasvQZHsbuEpysvwTZNGJv9EfyCQdsIDltPSWHAeTQ5fQy/Npi2ZDtLI3zs7Ps/p6wThErhm9fQ==",
+          "dev": true,
+          "requires": {
+            "chalk": "^2.4.2",
+            "source-map": "^0.6.1",
+            "supports-color": "^6.1.0"
+          }
+        },
+        "supports-color": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
+          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
       }
     },
     "postcss-scss": {
@@ -18228,6 +18279,16 @@
           "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
           "dev": true
         },
+        "postcss-sass": {
+          "version": "0.3.0",
+          "resolved": "https://registry.npmjs.org/postcss-sass/-/postcss-sass-0.3.0.tgz",
+          "integrity": "sha512-nZJEFS2bT007CmzMjlZfZwcZKpSJ/JeFiVEdgrgvGZtAnORU+5BvN0cioNuDAVxwXHXp3hksCJzbZYPWkuw41Q==",
+          "dev": true,
+          "requires": {
+            "gonzales-pe": "^4.2.3",
+            "postcss": "^6.0.16"
+          }
+        },
         "postcss-selector-parser": {
           "version": "3.1.1",
           "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-3.1.1.tgz",
diff --git a/package.json b/package.json
index 81833d2..6408a5d 100644
--- a/package.json
+++ b/package.json
@@ -95,7 +95,7 @@
     "identity-obj-proxy": "^3.0.0",
     "jest": "^22.4.2",
     "jsdom": "^11.0.0",
-    "postcss-sass": "^0.3.0",
+    "postcss-sass": "^0.4.0",
     "prettier": "^1.5.3",
     "prop-types": "^15.5.10",
     "raf": "^3.3.2",