diff --git a/composer.json b/composer.json
index 190df67..35a507b 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         }
     ],
     "require": {
-        "php": "^8.1",
+        "php": "^8.3",
         "silverstripe/vendor-plugin": "^2",
         "silverstripe/framework": "^6",
         "silverstripe/cms": "^6",
@@ -37,6 +37,9 @@
         "silverstripe/standards": "^1",
         "phpstan/extension-installer": "^1.3"
     },
+    "conflict": {
+        "egulias/email-validator": "<3.2.6"
+    },
     "suggest": {
         "symbiote/silverstripe-queuedjobs": "Automatically schedules content review emails to be sent, only requiring one crontask to be created"
     },