diff --git a/package.json b/package.json
index 78f1cf2..6a2118f 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "tailwindcss": "^1.2.0"
   },
   "devDependencies": {
-    "@fullhuman/postcss-purgecss": "2.1.2",
+    "@fullhuman/postcss-purgecss": "4.0.0",
     "@types/node": "13.9.0",
     "@types/react": "16.9.23",
     "@types/styled-components": "5.0.1",
diff --git a/yarn.lock b/yarn.lock
index 3a9dc9b..14b0dd4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -962,13 +962,12 @@
   resolved "https://artifacts.werally.in:443/artifactory/api/npm/npm/@emotion/unitless/-/unitless-0.7.5.tgz#77211291c1900a700b8a78cfafda3160d76949ed"
   integrity sha1-dyESkcGQCnALinjPr9oxYNdpSe0=
 
-"@fullhuman/postcss-purgecss@2.1.2":
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/@fullhuman/postcss-purgecss/-/postcss-purgecss-2.1.2.tgz#8fe4d4ae2b58214b5452cb490a31c7146517442f"
-  integrity sha512-Jf34YVBK9GtXTblpu0svNUJdA7rTQoRMz+yEJe6mwTnXDIGipWLzaX/VgU/x6IPC6WvU5SY/XlawwqhxoyFPTg==
+"@fullhuman/postcss-purgecss@4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@fullhuman/postcss-purgecss/-/postcss-purgecss-4.0.0.tgz#9e27ccdc5d19192af8b59d9d9e4f480cfb5c55c9"
+  integrity sha512-1DNYIDxFsvGOeKdc2BFtIQriMWwzX6dY+9q0Z0n9TNZhFZ9T6nHRZHPC22aYLlPDd0ucCgIr1deTgDTrjq21KQ==
   dependencies:
-    postcss "7.0.27"
-    purgecss "^2.1.2"
+    purgecss "^4.0.0"
 
 "@next/react-refresh-utils@9.3.6":
   version "9.3.6"
@@ -1891,15 +1890,20 @@ color@^3.0.0:
     color-convert "^1.9.1"
     color-string "^1.5.2"
 
+colorette@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.1.tgz#4d0b921325c14faf92633086a536db6e89564b1b"
+  integrity sha512-puCDz0CzydiSYOrnXpz/PKd69zRrribezjtE9yd4zvytoRc8+RY/KJPvtPFKZS3E3wP6neGyMe0vOTlHO5L3Pw==
+
 commander@^2.20.0:
   version "2.20.3"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
   integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
 
-commander@^5.0.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-5.1.0.tgz#46abbd1652f8e059bddaef99bbdcb2ad9cf179ae"
-  integrity sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg==
+commander@^6.0.0:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-6.2.1.tgz#0792eb682dfbc325999bb2b84fddddba110ac73c"
+  integrity sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA==
 
 commondir@^1.0.1:
   version "1.0.1"
@@ -3725,6 +3729,11 @@ nan@^2.12.1:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.1.tgz#d7be34dfa3105b91494c3147089315eff8874b01"
   integrity sha512-isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==
 
+nanoid@^3.1.20:
+  version "3.1.20"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.20.tgz#badc263c6b1dcf14b71efaa85f6ab4c1d6cfc788"
+  integrity sha512-a1cQNyczgKbLX9jwbS/+d7W8fX/RfgYR7lVWwWOGIPNgK2m0MWvrGF6/m4kk6U3QcFMnZf3RIhL0v2Jgh/0Uxw==
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -4634,6 +4643,15 @@ postcss@^6.0.9:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
+postcss@^8.2.1:
+  version "8.2.4"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.4.tgz#20a98a39cf303d15129c2865a9ec37eda0031d04"
+  integrity sha512-kRFftRoExRVXZlwUuay9iC824qmXPcQQVzAjbCCgjpXnkdMCJYBu2gTwAaFBzv8ewND6O8xFb3aELmEkh9zTzg==
+  dependencies:
+    colorette "^1.2.1"
+    nanoid "^3.1.20"
+    source-map "^0.6.1"
+
 prepend-http@^1.0.0:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
@@ -4739,14 +4757,14 @@ punycode@^2.1.0:
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
   integrity sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==
 
-purgecss@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/purgecss/-/purgecss-2.1.2.tgz#96f666d04c56705208aaa1a544b5f22e13828955"
-  integrity sha512-5oDBxiT9VonwKmEMohPFRFZrj8fdSVKxHPwq7G5Rx/2pXicZFJu+D4m5bb3NuV0sSK3ooNxq5jFIwwHzifP5FA==
+purgecss@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/purgecss/-/purgecss-4.0.0.tgz#25446199df2ec40d418caf4b95c7548a011be3f1"
+  integrity sha512-j/y6OtNpEiggw/ipCJUOMNLgLpeAv9L8q+SqzEdDzyVEZOfdWjg8yvgOxhBflNyYgJ8SZ+tTwPxrHT9vQUpEPw==
   dependencies:
-    commander "^5.0.0"
+    commander "^6.0.0"
     glob "^7.0.0"
-    postcss "7.0.27"
+    postcss "^8.2.1"
     postcss-selector-parser "^6.0.2"
 
 q@^1.1.2: