diff --git a/composer.json b/composer.json
index 08e86ad2f721d0f94205ae3cf90afa5691645a01..377f3406c5041baa921d4ead67918c0951e16730 100644
--- a/composer.json
+++ b/composer.json
@@ -9,6 +9,7 @@
 		"issues": "https://gitlab.sgalinski.de/typo3/tinymce/issues"
 	},
 	"require": {
+		"php": ">=7.0.0 <7.2",
 		"typo3/cms-core": "7.6.0 - 8.7.99"
 	},
 	"replace": {