diff --git a/package.json b/package.json
index 9bb85c8..7ef5ee3 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
   "dependencies": {
     "cssnano": "^5.1.12",
     "pixrem": "^5.0.0",
-    "postcss": "^8.4.14",
+    "postcss": "^8.4.20",
     "postcss-cli": "^9.1.0",
     "precss": "^4.0.0"
   }
diff --git a/yarn.lock b/yarn.lock
index 6a3cc2f..bf91126 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3075,10 +3075,10 @@ postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2, postcss@^7.0.32, postcss@^7.0.
     picocolors "^0.2.1"
     source-map "^0.6.1"
 
-postcss@^8.2.4, postcss@^8.3.11, postcss@^8.3.6, postcss@^8.4.14:
-  version "8.4.14"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.14.tgz#ee9274d5622b4858c1007a74d76e42e56fd21caf"
-  integrity sha512-E398TUmfAYFPBSdzgeieK2Y1+1cpdxJx8yXbK/m57nRhKSmk1GB2tO4lbLBtlkfPQTDKfe4Xqv1ASWPpayPEig==
+postcss@^8.2.4, postcss@^8.3.11, postcss@^8.3.6, postcss@^8.4.14, 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"