diff --git a/tests/Helper/ProfileValidatorTest.php b/tests/Helper/ProfileValidatorTest.php
index aa552668d..16232d4d7 100644
--- a/tests/Helper/ProfileValidatorTest.php
+++ b/tests/Helper/ProfileValidatorTest.php
@@ -24,46 +24,46 @@ public function testProfileValidatorWorksWithInvalidProfile($profile): void {
         $this->assertFalse($validator->passes());
     }
 
-    public static function validProfileProvider() {
-        return [
-            ['boring profile with no other' => [
-                'purpose' => 'data_hub',
-                'audience' => 'narrow',
-                'temporality' => 'permanent',
-            ]],
-            ['with other values' => [
-                'purpose' => 'data_hub',
-                'audience' => 'other',
-                'audience_other' => 'my cat',
-                'temporality' => 'other',
-                'temporality_other' => 'only in the past',
-            ]],
-        ];
+    public static function validProfileProvider(): iterable {
+        yield 'boring profile with no other' => [[
+            'purpose' => 'data_hub',
+            'audience' => 'narrow',
+            'temporality' => 'permanent',
+        ]];
+
+        yield 'with other values' => [[
+            'purpose' => 'data_hub',
+            'audience' => 'other',
+            'audience_other' => 'my cat',
+            'temporality' => 'other',
+            'temporality_other' => 'only in the past',
+        ]];
     }
 
-    public static function invalidProfileProvider() {
-        return [
-            ['missing other keys' => [
-                'purpose' => 'data_hub',
-                'audience' => 'narrow',
-                'temporality' => 'other',
-            ]],
-            ['audience is empty string' => [
-                'purpose' => 'data_hub',
-                'audience' => '',
-                'temporality' => 'other',
-            ]],
-            ['audience key present when purpose not data_hub' => [
-                'purpose' => 'data_lab',
-                'audience' => 'narrow',
-                'temporality' => 'permanent',
-            ]],
-            ['other keys when there should not be' => [
-                'purpose' => 'data_hub',
-                'purpose_other' => 'asdfasdf',
-                'audience' => 'narrow',
-                'temporality' => 'permanent',
-            ]],
-        ];
+    public static function invalidProfileProvider(): iterable {
+        yield 'missing other keys' => [[
+            'purpose' => 'data_hub',
+            'audience' => 'narrow',
+            'temporality' => 'other',
+        ]];
+
+        yield 'audience is empty string' => [[
+            'purpose' => 'data_hub',
+            'audience' => '',
+            'temporality' => 'other',
+        ]];
+
+        yield 'audience key present when purpose not data_hub' => [[
+            'purpose' => 'data_lab',
+            'audience' => 'narrow',
+            'temporality' => 'permanent',
+        ]];
+
+        yield 'other keys when there should not be' => [[
+            'purpose' => 'data_hub',
+            'purpose_other' => 'asdfasdf',
+            'audience' => 'narrow',
+            'temporality' => 'permanent',
+        ]];
     }
 }