diff --git a/build/javascript/package-lock.json b/build/javascript/package-lock.json
index ef14c2ee0..17ed56045 100644
--- a/build/javascript/package-lock.json
+++ b/build/javascript/package-lock.json
@@ -1479,9 +1479,9 @@
       }
     },
     "postcss": {
-      "version": "8.2.12",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.12.tgz",
-      "integrity": "sha512-BJnGT5+0q2tzvs6oQfnY2NpEJ7rIXNfBnZtQOKCIsweeWXBXeDd5k31UgTdS3d/c02ouspufn37mTaHWkJyzMQ==",
+      "version": "8.2.13",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.13.tgz",
+      "integrity": "sha512-FCE5xLH+hjbzRdpbRb1IMCvPv9yZx2QnDarBEYSN0N0HYk+TcXsEhwdFcFb+SRWOKzKGErhIEbBK2ogyLdTtfQ==",
       "dev": true,
       "requires": {
         "colorette": "^1.2.2",
diff --git a/build/javascript/package.json b/build/javascript/package.json
index d2d8de704..9a6c8cc0d 100644
--- a/build/javascript/package.json
+++ b/build/javascript/package.json
@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "cssnano": "^5.0.1",
-    "postcss": "^8.2.12",
+    "postcss": "^8.2.13",
     "postcss-cli": "^8.3.1"
   },
   "snowpack": {