We've updated the Gatsby export option to the latest version. Its dependencies have also been updated to the latest versions.
gatsby: "3.12.0",
"gatsby-image": "3.11.0",
"gatsby-plugin-manifest": "3.12.0",
"gatsby-plugin-offline": "4.12.0",
"gatsby-plugin-react-helmet": "4.12.0",
"gatsby-plugin-sharp": "3.12.0",
"gatsby-plugin-resolve-src": "2.1.0",
"gatsby-plugin-meta-redirect": "1.1.1",
"gatsby-source-filesystem": "3.12.0",
"gatsby-transformer-sharp": "3.12.0",
"gatsby-plugin-styled-components": "4.12.0",
"babel-plugin-styled-components": "1.10.7",
"react-helmet": "^6.1.0"