diff --git a/composer.json b/composer.json
index 87d9030..c2d3e42 100755
--- a/composer.json
+++ b/composer.json
@@ -32,8 +32,6 @@
         "revolt/event-loop": "^1 || ^0.2"
     },
     "require-dev": {
-        "ext-shmop": "*",
-        "ext-sysvmsg": "*",
         "phpunit/phpunit": "^9",
         "amphp/phpunit-util": "^3",
         "amphp/php-cs-fixer-config": "^2",