diff --git a/composer.json b/composer.json
index 133be84..81b009a 100644
--- a/composer.json
+++ b/composer.json
@@ -10,9 +10,9 @@
     ],
     "license": "BSD-3-Clause",
     "require": {
-        "silverstripe/framework": "^4.0",
-        "silverstripe/admin": "^1.0",
-        "silverstripe/taxonomy": "^2.0"
+        "silverstripe/framework": "^4.0 || ^5.0",
+        "silverstripe/admin": "^1.0 || ^2.0",
+        "silverstripe/taxonomy": "^2.0 || ^3.0 || ^4.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.7",
diff --git a/src/Model/Question.php b/src/Model/Question.php
index 19565fd..2299920 100644
--- a/src/Model/Question.php
+++ b/src/Model/Question.php
@@ -189,7 +189,7 @@ public function getCMSFields()
             if ($flowField) {
                 // Restrict the range to only Flows for this question's Pathfinder
                 $flowField
-                    ->setSource($this->Pathfinder()->Flows()->map())
+                    ->setSource($this->Pathfinder()->Flows())
                     ->setEmptyString('Use default Flow');
             }