diff --git a/package-lock.json b/package-lock.json
index a877cf3..ea41a06 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -127,9 +127,9 @@
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-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
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+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
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@@ -389,11 +389,6 @@
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       "dev": true
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-    "colorette": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.3.0.tgz",
-      "integrity": "sha512-ecORCqbSFP7Wm8Y6lyqMJjexBQqXSF7SSeaTyGGphogUjBlFP9m9o08wy86HL2uB7fMTxtOUzLMk7ogKcxMg1w=="
-    },
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       "resolved": "https://registry.npmjs.org/commander/-/commander-6.2.1.tgz",
@@ -1401,9 +1396,10 @@
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-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.25.tgz",
-      "integrity": "sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q=="
+      "version": "3.1.30",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.30.tgz",
+      "integrity": "sha512-zJpuPDwOv8D2zq2WRoMe1HsfZthVewpel9CAvTfc/2mBD1uUT/agc5f7GHGWXlYkFvi1mVxe4IjvP2HNrop7nQ==",
+      "dev": true
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@@ -1596,6 +1592,12 @@
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       "dev": true
     },
+    "picocolors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
+    },
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@@ -1666,13 +1668,14 @@
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-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.6.tgz",
-      "integrity": "sha512-wG1cc/JhRgdqB6WHEuyLTedf3KIRuD0hG6ldkFEZNCjRxiC+3i6kkWUUbiJQayP28iwG35cEmAbe98585BYV0A==",
+      "version": "8.4.4",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.4.tgz",
+      "integrity": "sha512-joU6fBsN6EIer28Lj6GDFoC/5yOZzLCfn0zHAn/MYXI7aPt4m4hK5KC5ovEZXy+lnCjmYIbQWngvju2ddyEr8Q==",
+      "dev": true,
       "requires": {
-        "colorette": "^1.2.2",
-        "nanoid": "^3.1.23",
-        "source-map-js": "^0.6.2"
+        "nanoid": "^3.1.30",
+        "picocolors": "^1.0.0",
+        "source-map-js": "^1.0.1"
       }
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@@ -1841,9 +1844,10 @@
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-      "version": "0.6.2",
-      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-0.6.2.tgz",
-      "integrity": "sha512-/3GptzWzu0+0MBQFrDKzw/DvvMTUORvgY6k6jd/VS6iCR4RDTKWH6v6WPwQoUO8667uQEf9Oe38DxAYWY5F/Ug=="
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.1.tgz",
+      "integrity": "sha512-4+TN2b3tqOCd/kaGRJ/sTYA0tR0mdXx26ipdolxcwtJVqEnqNYvlCAt1q3ypy4QMlYus+Zh34RNtYLoq2oQ4IA==",
+      "dev": true
     },
     "sprintf-js": {
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diff --git a/package.json b/package.json
index ab7d669..dfe6445 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "istanbul": "~0.4.5",
     "lint-staged": "^10.0.3",
     "mocha": "~7.2.0",
+    "postcss": "^8.0.0",
     "postcss-nested": "^5.0.6",
     "prettier": "^2.0.0"
   },