fix: missing okg in docker version

Author: mydearxym

package-docker.json

@@ -12,6 +12,7 @@
   "dependencies": {
     "@sentry/browser": "^4.6.4",
     "@sentry/node": "^4.6.4",
+    "@zeit/next-css": "^1.0.1",
     "@zeit/next-source-maps": "0.0.4-canary.1",
     "next-compose-plugins": "^2.2.0",
     "next-offline": "^4.0.2",