diff --git a/package-lock.json b/package-lock.json
index f32779c8601c1106b034e9d22df8f69cefa4fc69..82c90b5cad9d1407849bb6d5d61419236aec97d5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,7 +25,7 @@
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         "nunjucks": "3.2.3",
         "nunjucks-cli": "1.0.0",
-        "postcss": "8.4.16",
+        "postcss": "8.4.18",
         "postcss-cli": "10.0.0",
         "postcss-csso": "6.0.1",
         "postcss-flexbugs-fixes": "5.0.2",
@@ -10600,9 +10600,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.16",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.16.tgz",
-      "integrity": "sha512-ipHE1XBvKzm5xI7hiHCZJCSugxvsdq2mPnsq5+UF+VHCjiBvtDrlxJfMBToWaP9D5XlgNmcFGqoHmUn0EYEaRQ==",
+      "version": "8.4.18",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.18.tgz",
+      "integrity": "sha512-Wi8mWhncLJm11GATDaQKobXSNEYGUHeQLiQqDFG1qQ5UTDPTEvKw0Xt5NsTpktGTwLps3ByrWsBrG0rB8YQ9oA==",
       "dev": true,
       "funding": [
         {
@@ -21339,9 +21339,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.4.16",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.16.tgz",
-      "integrity": "sha512-ipHE1XBvKzm5xI7hiHCZJCSugxvsdq2mPnsq5+UF+VHCjiBvtDrlxJfMBToWaP9D5XlgNmcFGqoHmUn0EYEaRQ==",
+      "version": "8.4.18",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.18.tgz",
+      "integrity": "sha512-Wi8mWhncLJm11GATDaQKobXSNEYGUHeQLiQqDFG1qQ5UTDPTEvKw0Xt5NsTpktGTwLps3ByrWsBrG0rB8YQ9oA==",
       "dev": true,
       "requires": {
         "nanoid": "^3.3.4",
diff --git a/package.json b/package.json
index 374db5c3955b39697ab854b43ec0793100bb7b86..a11bf37f7e7ffb0f04378bd483ad3ac1033f0b04 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "npm-run-all": "4.1.5",
     "nunjucks": "3.2.3",
     "nunjucks-cli": "1.0.0",
-    "postcss": "8.4.16",
+    "postcss": "8.4.18",
     "postcss-cli": "10.0.0",
     "postcss-csso": "6.0.1",
     "postcss-flexbugs-fixes": "5.0.2",