diff --git a/package-lock.json b/package-lock.json
index efb5835c19..73a75e9bbe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -55,7 +55,7 @@
         "lockfile-lint": "^4.9.6",
         "nodemon": "^2.0.20",
         "npm-run-all": "^4.1.5",
-        "postcss": "^8.4.17",
+        "postcss": "^8.4.18",
         "postcss-cli": "^10.0.0",
         "rollup": "^2.79.1",
         "rollup-plugin-istanbul": "^3.0.0",
@@ -7996,9 +7996,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.17",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.17.tgz",
-      "integrity": "sha512-UNxNOLQydcOFi41yHNMcKRZ39NeXlr8AxGuZJsdub8vIb12fHzcq37DTU/QtbI6WLxNg2gF9Z+8qtRwTj1UI1Q==",
+      "version": "8.4.18",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.18.tgz",
+      "integrity": "sha512-Wi8mWhncLJm11GATDaQKobXSNEYGUHeQLiQqDFG1qQ5UTDPTEvKw0Xt5NsTpktGTwLps3ByrWsBrG0rB8YQ9oA==",
       "dev": true,
       "funding": [
         {
@@ -16415,9 +16415,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.4.17",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.17.tgz",
-      "integrity": "sha512-UNxNOLQydcOFi41yHNMcKRZ39NeXlr8AxGuZJsdub8vIb12fHzcq37DTU/QtbI6WLxNg2gF9Z+8qtRwTj1UI1Q==",
+      "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 08420de599..a6dd63706c 100644
--- a/package.json
+++ b/package.json
@@ -140,7 +140,7 @@
     "lockfile-lint": "^4.9.6",
     "nodemon": "^2.0.20",
     "npm-run-all": "^4.1.5",
-    "postcss": "^8.4.17",
+    "postcss": "^8.4.18",
     "postcss-cli": "^10.0.0",
     "rollup": "^2.79.1",
     "rollup-plugin-istanbul": "^3.0.0",