diff --git a/build/javascript/package-lock.json b/build/javascript/package-lock.json
index 2170dbe3b..7454fcfd1 100644
--- a/build/javascript/package-lock.json
+++ b/build/javascript/package-lock.json
@@ -1245,9 +1245,9 @@
       }
     },
     "postcss": {
-      "version": "8.3.10",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.10.tgz",
-      "integrity": "sha512-YYfvfUdWx+ECpr5Hgc6XRfsaux8LksL5ey8qTtWiuRXOpOF1YYMwAySdh0nSmwhZAFvvJ6rgiIkKVShu4x2T1Q==",
+      "version": "8.3.11",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.11.tgz",
+      "integrity": "sha512-hCmlUAIlUiav8Xdqw3Io4LcpA1DOt7h3LSTAC4G6JGHFFaWzI6qvFt9oilvl8BmkbBRX1IhM90ZAmpk68zccQA==",
       "dev": true,
       "requires": {
         "nanoid": "^3.1.30",
diff --git a/build/javascript/package.json b/build/javascript/package.json
index 675f3dd71..adcfccc12 100644
--- a/build/javascript/package.json
+++ b/build/javascript/package.json
@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "cssnano": "^5.0.8",
-    "postcss": "^8.3.10",
+    "postcss": "^8.3.11",
     "postcss-cli": "^9.0.1"
   },
   "snowpack": {