diff --git a/app/config/collections.php b/app/config/collections.php
index 380982889a..9afb8f1d78 100644
--- a/app/config/collections.php
+++ b/app/config/collections.php
@@ -1161,7 +1161,7 @@ $collections = [
                 '$id' => 'secret',
                 'type' => Database::VAR_STRING,
                 'format' => '',
-                'size' => 256, // https://www.tutorialspoint.com/how-long-is-the-sha256-hash-in-mysql (256 for encryption)
+                'size' => 512, // https://www.tutorialspoint.com/how-long-is-the-sha256-hash-in-mysql (512 for encryption)
                 'signed' => true,
                 'required' => false,
                 'default' => null,