diff --git a/composer.json b/composer.json
index b76ae56a..b719a537 100644
--- a/composer.json
+++ b/composer.json
@@ -14,6 +14,8 @@
 		"wp-phpunit/wp-phpunit": "^5.9",
 		"yoast/phpunit-polyfills": "^1.0"
 	},
+	"minimum-stability": "dev",
+	"prefer-stable": true,
 	"config": {
 		"allow-plugins": {
 			"dealerdirect/phpcodesniffer-composer-installer": true