diff --git a/examples/websocket-relay/relay-app/package-lock.json b/examples/websocket-relay/relay-app/package-lock.json
index 94687b3b..40767541 100644
--- a/examples/websocket-relay/relay-app/package-lock.json
+++ b/examples/websocket-relay/relay-app/package-lock.json
@@ -23,7 +23,7 @@
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-        "postcss": "^8.4.21",
+        "postcss": "^8.4.31",
         "prettier": "^2.8.8",
         "prettier-plugin-svelte": "^2.8.1",
         "svelte": "^3.54.0",
@@ -2712,9 +2712,9 @@
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-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.27.tgz",
-      "integrity": "sha512-gY/ACJtJPSmUFPDCHtX78+01fHa64FaU4zaaWfuh1MhGJISufJAH4cun6k/8fwsHYeK4UQmENQK+tRLCFJE8JQ==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
       "funding": [
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@@ -5982,9 +5982,9 @@
       "dev": true
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-      "version": "8.4.27",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.27.tgz",
-      "integrity": "sha512-gY/ACJtJPSmUFPDCHtX78+01fHa64FaU4zaaWfuh1MhGJISufJAH4cun6k/8fwsHYeK4UQmENQK+tRLCFJE8JQ==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
       "requires": {
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diff --git a/examples/websocket-relay/relay-app/package.json b/examples/websocket-relay/relay-app/package.json
index 7ceb3654..eb75e296 100644
--- a/examples/websocket-relay/relay-app/package.json
+++ b/examples/websocket-relay/relay-app/package.json
@@ -24,7 +24,7 @@
     "eslint": "^8.28.0",
     "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-svelte3": "^4.0.0",
-    "postcss": "^8.4.21",
+    "postcss": "^8.4.31",
     "prettier": "^2.8.8",
     "prettier-plugin-svelte": "^2.8.1",
     "svelte": "^3.54.0",