diff --git a/typo3/sysext/install/Classes/Updates/SeparateSysHistoryFromSysLogUpdate.php b/typo3/sysext/install/Classes/Updates/SeparateSysHistoryFromSysLogUpdate.php
index 6c20eec7635ec8c367727fefd80fb8dec8a94dd0..8c13854dea271b60d326c2062797aa77e4ed1502 100644
--- a/typo3/sysext/install/Classes/Updates/SeparateSysHistoryFromSysLogUpdate.php
+++ b/typo3/sysext/install/Classes/Updates/SeparateSysHistoryFromSysLogUpdate.php
@@ -390,7 +390,7 @@ class SeparateSysHistoryFromSysLogUpdate implements UpgradeWizardInterface, Repe
 
     protected function unserializeToArray(string $serialized): array
     {
-        $unserialized = unserialize($serialized, ['allowed_classes' => false]);
+        $unserialized = @unserialize($serialized, ['allowed_classes' => false]);
         return is_array($unserialized) ? $unserialized : [];
     }
 }