diff --git a/composer.json b/composer.json
index 255bbd9c..b00cba01 100644
--- a/composer.json
+++ b/composer.json
@@ -46,7 +46,7 @@
         "pixelfear/composer-dist-plugin": "^0.1.5",
         "spatie/error-solutions": "^1.0 || ^2.0",
         "spatie/invade": "^2.1",
-        "statamic/cms": "^6.10",
+        "statamic/cms": "^6.17",
         "stillat/proteus": "^4.2.1"
     },
     "require-dev": {
diff --git a/tests/Http/Controllers/CP/ResourceControllerTest.php b/tests/Http/Controllers/CP/ResourceControllerTest.php
index 7a82a48e..9120ed46 100644
--- a/tests/Http/Controllers/CP/ResourceControllerTest.php
+++ b/tests/Http/Controllers/CP/ResourceControllerTest.php
@@ -474,9 +474,9 @@ public function can_edit_resource_with_date_field_with_default_format()
             ]))
             ->assertOk();
 
-        // Time isn't enabled, so expect the time to be 00:00:00.
+        // Time isn't enabled, so expect just the date.
         $this->assertEquals(
-            $post->created_at->startOfDay()->toIso8601ZuluString('millisecond'),
+            $post->created_at->startOfDay()->format('Y-m-d'),
             $response->inertiaProps('values')['created_at']
         );
     }