element 就自己升级了 我也不知道为啥

package.json

@@ -10,7 +10,7 @@
     "axios": "^0.18.0",
     "echarts": "^4.2.0-rc.1",
     "echarts-wordcloud": "^1.1.3",
-    "element-ui": "^2.4.5",
+    "element-ui": "^2.12.0",
     "html2canvas": "^1.0.0-alpha.12",
     "js-md5": "^0.7.3",
     "jspdf": "^1.4.1",

yarn.lock

@@ -2381,9 +2381,9 @@ element-resize-detector@latest:
   dependencies:
     batch-processor "^1.0.0"
 
-element-ui@^2.4.5:
-  version "2.4.8"
-  resolved "https://registry.yarnpkg.com/element-ui/-/element-ui-2.4.8.tgz#04c684540f84983ef440b516680b0dc6a4c66eff"
+element-ui@^2.12.0:
+  version "2.12.0"
+  resolved "https://registry.yarnpkg.com/element-ui/-/element-ui-2.12.0.tgz#a893bc11ae4f7dbb7e9d541606f23e643f131ee4"
   dependencies:
     async-validator "~1.8.1"
     babel-helper-vue-jsx-merge-props "^2.0.0"