diff --git a/composer.json b/composer.json
index 96610b7..ffeb59f 100644
--- a/composer.json
+++ b/composer.json
@@ -31,6 +31,10 @@
         "silverstripe/standards": "^1",
         "phpstan/extension-installer": "^1.3"
     },
+    "conflict": {
+        "dnadesign/silverstripe-elemental": "6.0.0-alpha1",
+        "silverstripe/userforms": "7.0.0-alpha1"
+    },
     "autoload": {
         "psr-4": {
             "DNADesign\\ElementalUserForms\\": "src/",