diff --git a/resources/tentative/complex-static-html/package-lock.json b/resources/tentative/complex-static-html/package-lock.json
index 59a993828..bff066cbe 100644
--- a/resources/tentative/complex-static-html/package-lock.json
+++ b/resources/tentative/complex-static-html/package-lock.json
@@ -69,7 +69,7 @@
         "http-server": "^14.1.1",
         "loadicons": "^1.0.0",
         "mini-css-extract-plugin": "^2.7.2",
-        "postcss": "^8.4.23",
+        "postcss": "^8.4.31",
         "postcss-cli": "^10.1.0",
         "postcss-dropunusedvars": "^1.2.1",
         "postcss-import": "15.1.0",
@@ -6315,9 +6315,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.23",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.23.tgz",
-      "integrity": "sha512-bQ3qMcpF6A/YjR55xtoTr0jGOlnPOKAIMdOWiv0EIT6HVPEaJiJB4NLljSbiHoC2RX7DN5Uvjtpbg1NPdwv1oA==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
       "funding": [
         {
diff --git a/resources/tentative/complex-static-html/package.json b/resources/tentative/complex-static-html/package.json
index 1d6d0b86a..492cb140e 100644
--- a/resources/tentative/complex-static-html/package.json
+++ b/resources/tentative/complex-static-html/package.json
@@ -67,7 +67,7 @@
     "http-server": "^14.1.1",
     "loadicons": "^1.0.0",
     "mini-css-extract-plugin": "^2.7.2",
-    "postcss": "^8.4.23",
+    "postcss": "^8.4.31",
     "postcss-cli": "^10.1.0",
     "postcss-dropunusedvars": "^1.2.1",
     "postcss-import": "15.1.0",