diff --git a/.meteor/versions b/.meteor/versions
index ebd055bec..fe3bd637a 100644
--- a/.meteor/versions
+++ b/.meteor/versions
@@ -137,7 +137,7 @@ useraccounts:flow-routing-extra@1.1.0
 useraccounts:unstyled@1.14.2
 webapp@1.13.8
 webapp-hashing@1.1.1
-wekan-accounts-cas@0.1.0
+wekan-accounts-cas@0.2.0
 wekan-accounts-lockout@1.1.0
 wekan-accounts-oidc@1.0.10
 wekan-accounts-sandstorm@0.9.0
diff --git a/packages/wekan-accounts-cas/cas_server.js b/packages/wekan-accounts-cas/cas_server.js
index 2e8edef2c..f8bb2d894 100644
--- a/packages/wekan-accounts-cas/cas_server.js
+++ b/packages/wekan-accounts-cas/cas_server.js
@@ -1,9 +1,8 @@
 "use strict";
 
-const Fiber = Npm.require('fibers');
-const https = Npm.require('https');
-const url = Npm.require('url');
-const xmlParser = Npm.require('xml2js');
+import https from 'https';
+import url from 'url';
+import xml2js from 'xml2js';
 
 // Library
 class CAS {
@@ -61,7 +60,7 @@ class CAS {
           console.log(error);
           callback(undefined, false);
         } else {
-          xmlParser.parseString(response, (err, result) => {
+          xml2js.parseString(response, (err, result) => {
             if (err) {
               console.log('Bad response format.');
               callback({message: 'Bad response format. XML could not parse it'});
@@ -120,20 +119,16 @@ let _userData = {};
 //RoutePolicy.declare('/_cas/', 'network');
 
 // Listen to incoming OAuth http requests
-WebApp.connectHandlers.use((req, res, next) => {
-  // Need to create a Fiber since we're using synchronous http calls and nothing
-  // else is wrapping this in a fiber automatically
-
-  Fiber(() => {
-    middleware(req, res, next);
-  }).run();
-});
+WebApp.connectHandlers.use(Meteor.bindEnvironment((req, res, next) => {
+  middleware(req, res, next);
+}));
 
 const middleware = (req, res, next) => {
   // Make sure to catch any exceptions because otherwise we'd crash
   // the runner
+  let redirectUrl;
   try {
-    urlParsed = url.parse(req.url, true);
+    const urlParsed = url.parse(req.url, true);
 
     // Getting the ticket (if it's defined in GET-params)
     // If no ticket, then request will continue down the default
@@ -150,7 +145,7 @@ const middleware = (req, res, next) => {
     }
 
     const serviceUrl = Meteor.absoluteUrl(urlParsed.href.replace(/^\//g, '')).replace(/([&?])ticket=[^&]+[&]?/g, '$1').replace(/[?&]+$/g, '');
-    const redirectUrl = serviceUrl;//.replace(/([&?])casToken=[^&]+[&]?/g, '$1').replace(/[?&]+$/g, '');
+    redirectUrl = serviceUrl;//.replace(/([&?])casToken=[^&]+[&]?/g, '$1').replace(/[?&]+$/g, '');
 
     // get auth token
     const credentialToken = query.casToken;
@@ -206,7 +201,7 @@ const casValidate = (req, ticket, token, service, callback) => {
  * Register a server-side login handle.
  * It is call after Accounts.callLoginMethod() is call from client.
  */
- Accounts.registerLoginHandler((options) => {
+ Accounts.registerLoginHandler(async (options) => {
   if (!options.cas)
     return undefined;
 
@@ -252,13 +247,13 @@ const casValidate = (req, ticket, token, service, callback) => {
   if (attrs.debug) {
     console.log(`CAS response : ${JSON.stringify(result)}`);
   }
-  let user = Meteor.users.findOne({ 'username': options.username });
+  let user = await Meteor.users.findOneAsync({ 'username': options.username });
   if (! user) {
     if (attrs.debug) {
       console.log(`Creating user account ${JSON.stringify(options)}`);
     }
-    const userId = Accounts.insertUserDoc({}, options);
-    user = Meteor.users.findOne(userId);
+    const userId = await Accounts.insertUserDoc({}, options);
+    user = await Meteor.users.findOneAsync(userId);
   }
   if (attrs.debug) {
     console.log(`Using user account ${JSON.stringify(user)}`);
@@ -267,7 +262,7 @@ const casValidate = (req, ticket, token, service, callback) => {
 });
 
 const _hasCredential = (credentialToken) => {
-  return _.has(_casCredentialTokens, credentialToken);
+  return Object.prototype.hasOwnProperty.call(_casCredentialTokens, credentialToken);
 }
 
 /*
diff --git a/packages/wekan-accounts-cas/package.js b/packages/wekan-accounts-cas/package.js
index 314d17c17..8cf749829 100644
--- a/packages/wekan-accounts-cas/package.js
+++ b/packages/wekan-accounts-cas/package.js
@@ -1,17 +1,17 @@
 Package.describe({
   summary: "CAS support for accounts",
-  version: "0.1.0",
+  version: "0.2.0",
   name: "wekan-accounts-cas",
   git: "https://github.com/wekan/meteor-accounts-cas"
 });
 
 Package.onUse(function(api) {
+  api.use('ecmascript');
   api.use('routepolicy', 'server');
   api.use('webapp', 'server');
   api.use('accounts-base', ['client', 'server']);
   // Export Accounts (etc) to packages using this one.
   api.imply('accounts-base', ['client', 'server']);
-  api.use('underscore');
   api.addFiles('cas_client.js', 'web.browser');
   api.addFiles('cas_client_cordova.js', 'web.cordova');
   api.addFiles('cas_server.js', 'server');