diff --git a/package.json b/package.json
index 4ca07ef..99a99b0 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "import-cwd": "^3.0.0",
     "p-queue": "^6.3.0",
     "pify": "^5.0.0",
-    "postcss": "^7.0.27",
+    "postcss": "^8.4.20",
     "postcss-load-config": "^2.1.0",
     "postcss-modules": "^2.0.0",
     "promise.series": "^0.2.0",
diff --git a/yarn.lock b/yarn.lock
index 26824c4..a51b366 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2593,16 +2593,6 @@ camelcase-keys@^6.2.2:
     camelcase "^5.3.1"
     map-obj "^4.0.0"
     quick-lru "^4.0.1"
-    
-camelcase@^2.0.0:
-  version "2.1.1"
-  resolved "https://registry.npmjs.org/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
-  integrity sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=
-
-camelcase@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
-  integrity sha512-4nhGqUkc4BqbBBB4Q6zLuD7lzzrHYrjKGeYaEji/3tFR5VdJu9v+LilhGIVe8wxEJPPOeWo7eg8dwY13TZ1BNg==
 
 camelcase@^4.1.0:
   version "4.1.0"
@@ -6777,6 +6767,11 @@ nan@^2.13.2:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
   integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
 
+nanoid@^3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.4.tgz#730b67e3cd09e2deacf03c027c81c9d9dbc5e8ab"
+  integrity sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.npmjs.org/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -7475,6 +7470,11 @@ performance-now@^2.1.0:
   resolved "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
   integrity sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=
 
+picocolors@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
+  integrity sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==
+
 picomatch@^2.0.4, picomatch@^2.0.5:
   version "2.2.2"
   resolved "https://registry.npm.taobao.org/picomatch/download/picomatch-2.2.2.tgz#21f333e9b6b8eaff02468f5146ea406d345f4dad"
@@ -7916,6 +7916,15 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.2, postcss@^7.0.27
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
+postcss@^8.4.20:
+  version "8.4.20"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.20.tgz#64c52f509644cecad8567e949f4081d98349dc56"
+  integrity sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==
+  dependencies:
+    nanoid "^3.3.4"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.2"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -9011,6 +9020,11 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
+source-map-js@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
+  integrity sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==
+
 source-map-resolve@^0.5.0:
   version "0.5.2"
   resolved "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"
@@ -10299,14 +10313,6 @@ yaml@^1.7.2:
   dependencies:
     "@babel/runtime" "^7.8.7"
 
-yargs-parser@^5.0.0:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.1.tgz#7ede329c1d8cdbbe209bd25cdb990e9b1ebbb394"
-  integrity sha512-wpav5XYiddjXxirPoCTUPbqM0PXvJ9hiBMvuJgInvo4/lAOTZzUprArw17q2O1P2+GHhbBr18/iQwjL5Z9BqfA==
-  dependencies:
-    camelcase "^3.0.0"
-    object.assign "^4.1.0"
-    
 yargs-parser@^10.0.0:
   version "10.1.0"
   resolved "https://registry.npm.taobao.org/yargs-parser/download/yargs-parser-10.1.0.tgz#7202265b89f7e9e9f2e5765e0fe735a905edbaa8"