diff --git a/package.json b/package.json
index 10b0a6bd..2c3cefc7 100644
--- a/package.json
+++ b/package.json
@@ -79,6 +79,7 @@
     "@vue/cli-plugin-unit-jest": "3.5.3",
     "@vue/cli-service": "3.5.3",
     "@vue/test-utils": "1.0.0-beta.29",
+    "autoprefixer": "^9.5.1",
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "10.0.1",
     "babel-jest": "23.6.0",