diff --git a/build/javascript/package-lock.json b/build/javascript/package-lock.json
index 00f4afc88..bc934246c 100644
--- a/build/javascript/package-lock.json
+++ b/build/javascript/package-lock.json
@@ -1410,9 +1410,9 @@
       }
     },
     "postcss": {
-      "version": "8.3.0",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.0.tgz",
-      "integrity": "sha512-+ogXpdAjWGa+fdYY5BQ96V/6tAo+TdSSIMP5huJBIygdWwKtVoB5JWZ7yUd4xZ8r+8Kvvx4nyg/PQ071H4UtcQ==",
+      "version": "8.3.1",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.1.tgz",
+      "integrity": "sha512-9qH0MGjsSm+fjxOi3GnwViL1otfi7qkj+l/WX5gcRGmZNGsIcqc+A5fBkE6PUobEQK4APqYVaES+B3Uti98TCw==",
       "dev": true,
       "requires": {
         "colorette": "^1.2.2",
diff --git a/build/javascript/package.json b/build/javascript/package.json
index 41b8d58ae..6e1bcc107 100644
--- a/build/javascript/package.json
+++ b/build/javascript/package.json
@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "cssnano": "^5.0.5",
-    "postcss": "^8.3.0",
+    "postcss": "^8.3.1",
     "postcss-cli": "^8.3.1"
   },
   "snowpack": {