diff --git a/composer.json b/composer.json
index 73f91f4..5a09c61 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "issues": "http://github.com/silverstripe/silverstripe-tagfield/issues"
     },
     "require": {
-        "php": "^7.3 || ^8.0",
+        "php": "^7.4 || ^8.0",
         "silverstripe/framework": "^4.10",
         "silverstripe/versioned": "^1.3"
     },