diff --git a/package.json b/package.json
index a667e2d..96da470 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "babel-loader": "^8.1.0",
     "babel-preset-proposal": "^1.1.2",
     "css-loader": "^5.0.0",
-    "cssnano": "^5.0.0",
+    "cssnano": "^6.0.0",
     "dool-init": "^2.0.5",
     "etpl-loader": "^1.0.1",
     "file-loader": "^6.1.1",
@@ -39,7 +39,7 @@
     "less-loader": "^8.0.0",
     "mini-css-extract-plugin": "^1.0.0",
     "postcss": "^8.1.1",
-    "postcss-loader": "^5.2.0",
+    "postcss-loader": "^7.1.0",
     "sass": "^1.32.8",
     "sass-loader": "^11.0.1",
     "style-loader": "^2.0.0",