diff --git a/composer.json b/composer.json
index ce1a99b..10fbb18 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     "require": {
         "php": ">=7.1.0",
         "coreproc/nova-echo": "^0.2.0",
-        "pusher/pusher-php-server": "^3.2"
+        "pusher/pusher-php-server": "^4.1.1"
     },
     "autoload": {
         "psr-4": {