diff --git a/composer.json b/composer.json
index a568518a..7fab1226 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
 		"irc": "irc://irc.freenode.net/mediawiki-i18n"
 	},
 	"require": {
-		"php": ">=5.5.9",
+		"php": ">=7.1",
 		"composer/installers": ">=1.0.1"
 	},
 	"suggest": {