fix package.json vue-template-compiler version

package.json

@@ -44,6 +44,6 @@
     "less-loader": "^5.0.0",
     "sass": "^1.34.0",
     "sass-loader": "^10.2.0",
-    "vue-template-compiler": "^2.6.11"
+    "vue-template-compiler": "~2.6.11"
   }
 }