diff --git a/package.json b/package.json
index 7eb8be9..57f915e 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,10 @@
     "eslint-plugin-n": "^15.3.0",
     "eslint-plugin-promise": "^6.1.0",
     "rollup": "^2.56.3",
-    "rollup-plugin-terser": "^7.0.2"
+    "rollup-plugin-terser": "^7.0.2",
+    "postcss": "^8.3.6",
+    "postcss-cli": "^8.3.1",
+    "cssnano": "^5.0.6"
 },
 "type": "module"
 }
\ No newline at end of file