diff --git a/package-lock.json b/package-lock.json
index 376dbe5a..8598b91b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,7 @@
         "minimist": "1.2.7",
         "mkdirp": "1.0.4",
         "mocha": "10.0.0",
-        "postcss": "8.4.19",
+        "postcss": "8.4.20",
         "postcss-map": "0.11.0",
         "power-assert": "1.6.1",
         "prettier": "2.8.1",
@@ -2823,9 +2823,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.19",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.19.tgz",
-      "integrity": "sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==",
+      "version": "8.4.20",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.20.tgz",
+      "integrity": "sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==",
       "dev": true,
       "funding": [
         {
@@ -6172,9 +6172,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.4.19",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.19.tgz",
-      "integrity": "sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==",
+      "version": "8.4.20",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.20.tgz",
+      "integrity": "sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==",
       "dev": true,
       "requires": {
         "nanoid": "^3.3.4",
diff --git a/package.json b/package.json
index f50d3072..04af885a 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "minimist": "1.2.7",
     "mkdirp": "1.0.4",
     "mocha": "10.0.0",
-    "postcss": "8.4.19",
+    "postcss": "8.4.20",
     "postcss-map": "0.11.0",
     "power-assert": "1.6.1",
     "prettier": "2.8.1",