diff --git a/csv_serialization.install b/csv_serialization.install
index f973e46..bd03538 100644
--- a/csv_serialization.install
+++ b/csv_serialization.install
@@ -1,5 +1,7 @@
 <?php
 
+use Drupal\Component\Utility\DeprecationHelper;
+use Drupal\Core\Extension\Requirement\RequirementSeverity;
 use League\Csv\Writer;
 
 /**
@@ -19,7 +21,7 @@ function csv_serialization_requirements($phase) {
     if (!class_exists(Writer::class)) {
       $requirements['league_csv'] = [
         'description' => t('CSV Serialization requires the League\Csv library.'),
-        'severity' => REQUIREMENT_ERROR,
+        'severity' => DeprecationHelper::backwardsCompatibleCall(\Drupal::VERSION, '11.2.0', fn() => RequirementSeverity::Error, fn() => REQUIREMENT_ERROR),
       ];
     }
   }