diff --git a/packages/app/package.json b/packages/app/package.json
index 16182b94f2..0db8dded95 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -141,7 +141,7 @@
     "knip": "^5.33.2",
     "msw": "^2.3.0",
     "msw-storybook-addon": "^2.0.2",
-    "postcss": "^8.4.38",
+    "postcss": "^8.5.10",
     "postcss-preset-mantine": "^1.18.0",
     "postcss-simple-vars": "^7.0.0",
     "prettier": "^3.3.2",
diff --git a/yarn.lock b/yarn.lock
index 27e65d9651..b80edda6e7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4493,7 +4493,7 @@ __metadata:
     nuqs: "npm:1.17.0"
     object-hash: "npm:^3.0.0"
     papaparse: "npm:^5.4.1"
-    postcss: "npm:^8.4.38"
+    postcss: "npm:^8.5.10"
     postcss-preset-mantine: "npm:^1.18.0"
     postcss-simple-vars: "npm:^7.0.0"
     prettier: "npm:^3.3.2"
@@ -23010,6 +23010,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.5.10":
+  version: 8.5.10
+  resolution: "postcss@npm:8.5.10"
+  dependencies:
+    nanoid: "npm:^3.3.11"
+    picocolors: "npm:^1.1.1"
+    source-map-js: "npm:^1.2.1"
+  checksum: 10c0/c592dffa0c4873b401f01955b265538d9942f425040df5e2b8f0ad34c83773a792ea0fa5859ccc99cfb5b955b4ebff118ab7056315388dc83b107b0fa8313576
+  languageName: node
+  linkType: hard
+
 "postcss@npm:^8.5.6":
   version: 8.5.6
   resolution: "postcss@npm:8.5.6"