diff --git a/composer.json b/composer.json
index ea717d9..ee7c82c 100644
--- a/composer.json
+++ b/composer.json
@@ -17,12 +17,12 @@
     ],
     "require": {
         "php": "^7.0",
-        "clue/stdio-react": "^1.0|^2.0",
+        "clue/stdio-react": "^1.0",
         "jolicode/jolinotif": "^2.0",
         "symfony/console": "^3.0|^4.0",
         "symfony/process": "^3.0|^4.0",
         "symfony/yaml": "^3.0|^4.0",
-        "yosymfony/resource-watcher": "^1.2|^2.0"
+        "yosymfony/resource-watcher": "^1.2"
     },
     "require-dev": {
         "phpunit/phpunit": "^6.0|^7.0"