diff --git a/package.json b/package.json
index 65790fd..56b0e52 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "@vue/server-test-utils": "^1.0.0-beta.26",
     "@vue/test-utils": "^1.0.0-beta.18",
     "@vuedoc/md": "^1.5.0",
-    "autoprefixer": "^8.5.2",
+    "autoprefixer": "^9.6.3",
     "babel-core": "^6.22.1",
     "babel-eslint": "^8.2.6",
     "babel-helper-vue-jsx-merge-props": "^2.0.3",