diff --git a/web/pnpm-lock.yaml b/web/pnpm-lock.yaml
index 70540a7f..69ea9f04 100644
--- a/web/pnpm-lock.yaml
+++ b/web/pnpm-lock.yaml
@@ -7,7 +7,7 @@ settings:
 overrides:
   vite: 6.4.3
   esbuild: 0.25.12
-  postcss: 8.5.16
+  postcss: 8.5.18
   sharp: ^0.35.0
   js-yaml: ^4.3.0
 
@@ -1882,8 +1882,8 @@ packages:
     resolution: {integrity: sha512-LKWqWJRhstyYo9pGvgor/ivk2w94eSjE3RGVuzLGlr3NmD8bf7RcYGze1mNdEHRP6TRP6rMuDHk5t44hnTRyow==}
     engines: {node: '>=14.19.0'}
 
-  postcss@8.5.16:
-    resolution: {integrity: sha512-vuwillviilfKZsg0VGj5R/YwwcHx4SLsIOI/7K6mQkWx+l5cUHTjj5g0AasTBcyXsbfTgrwsUNmVUb5xVwyPwg==}
+  postcss@8.5.18:
+    resolution: {integrity: sha512-xdB1oSLHbz1vRWgCDalrCqEFTWzFlhqFC5tIHLMOSUIjhm3XXQ1qrFy8S/ESr1JYRRXqM3c1QFiMZUJdUTqyMQ==}
     engines: {node: ^10 || ^12 || >=14}
 
   prelude-ls@1.2.1:
@@ -3891,7 +3891,7 @@ snapshots:
       '@swc/helpers': 0.5.15
       baseline-browser-mapping: 2.10.43
       caniuse-lite: 1.0.30001805
-      postcss: 8.5.16
+      postcss: 8.5.18
       react: 19.2.7
       react-dom: 19.2.7(react@19.2.7)
       styled-jsx: 5.1.6(@babel/core@7.29.7(supports-color@10.2.2))(react@19.2.7)
@@ -3991,7 +3991,7 @@ snapshots:
 
   pngjs@7.0.0: {}
 
-  postcss@8.5.16:
+  postcss@8.5.18:
     dependencies:
       nanoid: 3.3.16
       picocolors: 1.1.1
@@ -4308,7 +4308,7 @@ snapshots:
       esbuild: 0.25.12
       fdir: 6.5.0(picomatch@4.0.5)
       picomatch: 4.0.5
-      postcss: 8.5.16
+      postcss: 8.5.18
       rollup: 4.62.2
       tinyglobby: 0.2.17
     optionalDependencies:
diff --git a/web/pnpm-workspace.yaml b/web/pnpm-workspace.yaml
index 3d20e6e3..ff223949 100644
--- a/web/pnpm-workspace.yaml
+++ b/web/pnpm-workspace.yaml
@@ -11,6 +11,6 @@ allowBuilds:
 overrides:
   vite: 6.4.3
   esbuild: 0.25.12
-  postcss: 8.5.16
+  postcss: 8.5.18
   sharp: ^0.35.0
   js-yaml: ^4.3.0