diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a06df5693..09c1d13d33 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,10 +3,13 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [2.1.1] - Unreleased
-- Make mouse events pass through the region fullscreen_above to modules below.
+
+**Note:** This update uses new dependencies. Please update using the following command: `git pull && npm install`
 
 ### Changed
 - Installer: Use init config.js from config.js.sample.
+- Switched out `rrule` package for `rrule-alt` in order to improve calendar issues. (Experimental: [#565](https://github.com/MichMich/MagicMirror/issues/565))
+- Make mouse events pass through the region fullscreen_above to modules below.
 
 ### Added
 - Add loaded function to modules, providing an async callback.
@@ -136,7 +139,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 - Added reference to Italian Translation.
-- Added the missing NE translation to all languages. [#334](https://github.com/MichMich/MagicMirror/issues/344)
+- Added the missing NE translation to all languages. [#565](https://github.com/MichMich/MagicMirror/issues/344)
 - Added proper User-Agent string to calendar call.
 
 ### Changed
diff --git a/modules/default/calendar/vendor/ical.js/node-ical.js b/modules/default/calendar/vendor/ical.js/node-ical.js
index 2f6ef3ef57..e2c4a31970 100644
--- a/modules/default/calendar/vendor/ical.js/node-ical.js
+++ b/modules/default/calendar/vendor/ical.js/node-ical.js
@@ -17,7 +17,7 @@ exports.parseFile = function(filename){
 }
 
 
-var rrule = require('rrule').RRule
+var rrule = require('rrule-alt').RRule
 
 ical.objectHandlers['RRULE'] = function(val, params, curr, stack, line){
   curr.rrule = line;
diff --git a/package.json b/package.json
index 54c60f923d..37ebbf0fcd 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "iconv-lite": "latest",
     "moment": "latest",
     "request": "^2.78.0",
-    "rrule": "latest",
+    "rrule-alt": "^2.2.3",
     "simple-git": "^1.62.0",
     "socket.io": "^1.5.1",
     "valid-url": "latest",