diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8fa7e37c..a125c08b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@ _This release is scheduled to be released on 2021-04-01._
 ### Fixed
 
 - Added default log levels to stop calendar log spamming.
+- Fix socket.io cors errors, see [breaking change since socket.io v3](https://socket.io/docs/v3/handling-cors/)
 
 ## [2.14.0] - 2021-01-01
 
diff --git a/js/server.js b/js/server.js
index f2e3c207..231cd295 100644
--- a/js/server.js
+++ b/js/server.js
@@ -27,7 +27,9 @@ function Server(config, callback) {
 	} else {
 		server = require("http").Server(app);
 	}
-	const io = require("socket.io")(server);
+	const io = require("socket.io")(server, {
+		cors: {}
+	});
 
 	Log.log(`Starting server on port ${port} ... `);