diff --git a/package.json b/package.json
index afab31b..e4d31ea 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "test:ci": "npm run format:check && npm run test"
   },
   "devDependencies": {
+    "postcss": "^8.5.12",
     "prettier": "^3.8.1",
     "sass": "^1.98.0",
     "stylelint": "^17.4.0",
diff --git a/yarn.lock b/yarn.lock
index 20d5510..cfffd20 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,7 +2,7 @@
 # Manual changes might be lost - proceed with caution!
 
 __metadata:
-  version: 8
+  version: 9
   cacheKey: 10c0
 
 "@babel/code-frame@npm:^7.0.0":
@@ -1591,6 +1591,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.5.12":
+  version: 8.5.12
+  resolution: "postcss@npm:8.5.12"
+  dependencies:
+    nanoid: "npm:^3.3.11"
+    picocolors: "npm:^1.1.1"
+    source-map-js: "npm:^1.2.1"
+  checksum: 10c0/5baebaf574c567bc1b3d61197f38af4ce5920b8f611c887fb6bc3dcc14af00253c169dbf19897bc889cce0b0d9818ab5eb4ea0caedf02b0bab10da8a43ce8c12
+  languageName: node
+  linkType: hard
+
 "postcss@npm:^8.5.6, postcss@npm:^8.5.9":
   version: 8.5.10
   resolution: "postcss@npm:8.5.10"
@@ -2050,6 +2061,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "tardis@workspace:."
   dependencies:
+    postcss: "npm:^8.5.12"
     prettier: "npm:^3.8.1"
     sass: "npm:^1.98.0"
     stylelint: "npm:^17.4.0"