tests/src/Functional/FileTest.php | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/tests/src/Functional/FileTest.php b/tests/src/Functional/FileTest.php
index a437833..7f5af0e 100644
--- a/tests/src/Functional/FileTest.php
+++ b/tests/src/Functional/FileTest.php
@@ -233,13 +233,11 @@ class FileTest extends ResourceTestBase {
 
   /**
    * Tests the BC layer for the pre-8.5 JSON API work-around for File entities.
+   *
+   * Tests on both <8.5 sites and >=8.5 sites: because existing sites that
+   * update to 8.5 should not break.
    */
   public function testGetIndividualBc() {
-    if (floatval(\Drupal::VERSION) < 8.5) {
-      $this->markTestSkipped('The "url" property on the "uri" field on File entities is only available for normalization in Drupal 8.5 and later.');
-      return;
-    }
-
     // Enable the BC layer.
     // @see jsonapi_entity_base_field_info()
     $config_factory = \Drupal::configFactory();