diff --git a/composer.json b/composer.json
index 0f6b98c42defa910db418e32b24b3a3a0f0b0b77..c092f2f88730faf03ab7ae948330641720fba37c 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
 		}
 	],
 	"require": {
-		"typo3/cms-core": "^7.6",
+		"typo3/cms-core": "7.6.0 - 8.7.99",
 		"sgalinski/tinymce": "^4.4"
 	},
 	"replace": {
diff --git a/ext_emconf.php b/ext_emconf.php
index 0635ec38579e69699119985cc3d6ab46adb0b109..dfbd10fe77b720b0a9e295d956e1851d727acca0 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -21,7 +21,7 @@ $EM_CONF[$_EXTKEY] = [
 			'depends' =>
 				[
 					'php' => '5.5.0-7.0.99',
-					'typo3' => '7.6.4-7.6.99',
+					'typo3' => '7.6.4-8.7.99',
 					'tinymce' => '4.3.4-4.4.99',
 				],
 			'conflicts' =>