diff --git a/web/package-lock.json b/web/package-lock.json
index b8abe518fd2..1a093fa1036 100644
--- a/web/package-lock.json
+++ b/web/package-lock.json
@@ -30,7 +30,7 @@
         "mdast-util-find-and-replace": "^3.0.1",
         "next": "^14.2.35",
         "npm": "^10.8.0",
-        "postcss": "^8.4.31",
+        "postcss": "^8.5.18",
         "prismjs": "^1.29.0",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
@@ -10765,9 +10765,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.15",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.15.tgz",
-      "integrity": "sha512-FfR8sjd4em2T6fb3I2MwAJU7HWVMr9zba+enmQeeWFfCbm+UOC/0X4DS8XtpUTMwWMGbjKYP7xjfNekzyGmB3A==",
+      "version": "8.5.18",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.18.tgz",
+      "integrity": "sha512-xdB1oSLHbz1vRWgCDalrCqEFTWzFlhqFC5tIHLMOSUIjhm3XXQ1qrFy8S/ESr1JYRRXqM3c1QFiMZUJdUTqyMQ==",
       "funding": [
         {
           "type": "opencollective",
diff --git a/web/package.json b/web/package.json
index f47495d3d87..1ce9fa24ab6 100644
--- a/web/package.json
+++ b/web/package.json
@@ -32,7 +32,7 @@
     "mdast-util-find-and-replace": "^3.0.1",
     "next": "^14.2.35",
     "npm": "^10.8.0",
-    "postcss": "^8.4.31",
+    "postcss": "^8.5.18",
     "prismjs": "^1.29.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",