diff --git a/app/Http/Controllers/Api/DatabasesController.php b/app/Http/Controllers/Api/DatabasesController.php
index c05af152f..a6056b9f3 100644
--- a/app/Http/Controllers/Api/DatabasesController.php
+++ b/app/Http/Controllers/Api/DatabasesController.php
@@ -639,10 +639,10 @@ public function update_by_uuid(Request $request)
                         'backup_now' => ['type' => 'boolean', 'description' => 'Whether to trigger backup immediately after creation'],
                         'database_backup_retention_amount_locally' => ['type' => 'integer', 'description' => 'Number of backups to retain locally'],
                         'database_backup_retention_days_locally' => ['type' => 'integer', 'description' => 'Number of days to retain backups locally'],
-                        'database_backup_retention_max_storage_locally' => ['type' => 'integer', 'description' => 'Max storage (MB) for local backups'],
+                        'database_backup_retention_max_storage_locally' => ['type' => 'number', 'description' => 'Max storage (GB) for local backups'],
                         'database_backup_retention_amount_s3' => ['type' => 'integer', 'description' => 'Number of backups to retain in S3'],
                         'database_backup_retention_days_s3' => ['type' => 'integer', 'description' => 'Number of days to retain backups in S3'],
-                        'database_backup_retention_max_storage_s3' => ['type' => 'integer', 'description' => 'Max storage (MB) for S3 backups'],
+                        'database_backup_retention_max_storage_s3' => ['type' => 'number', 'description' => 'Max storage (GB) for S3 backups'],
                         'timeout' => ['type' => 'integer', 'description' => 'Backup job timeout in seconds (min: 60, max: 36000)', 'default' => 3600],
                     ],
                 ),
@@ -703,10 +703,10 @@ public function create_backup(Request $request)
             'databases_to_backup' => 'string|nullable',
             'database_backup_retention_amount_locally' => 'integer|min:0',
             'database_backup_retention_days_locally' => 'integer|min:0',
-            'database_backup_retention_max_storage_locally' => 'integer|min:0',
+            'database_backup_retention_max_storage_locally' => 'numeric|min:0',
             'database_backup_retention_amount_s3' => 'integer|min:0',
             'database_backup_retention_days_s3' => 'integer|min:0',
-            'database_backup_retention_max_storage_s3' => 'integer|min:0',
+            'database_backup_retention_max_storage_s3' => 'numeric|min:0',
             'timeout' => 'integer|min:60|max:36000',
         ]);
 
@@ -878,10 +878,10 @@ public function create_backup(Request $request)
                         'frequency' => ['type' => 'string', 'description' => 'Frequency of the backup'],
                         'database_backup_retention_amount_locally' => ['type' => 'integer', 'description' => 'Retention amount of the backup locally'],
                         'database_backup_retention_days_locally' => ['type' => 'integer', 'description' => 'Retention days of the backup locally'],
-                        'database_backup_retention_max_storage_locally' => ['type' => 'integer', 'description' => 'Max storage of the backup locally'],
+                        'database_backup_retention_max_storage_locally' => ['type' => 'number', 'description' => 'Max storage of the backup locally'],
                         'database_backup_retention_amount_s3' => ['type' => 'integer', 'description' => 'Retention amount of the backup in s3'],
                         'database_backup_retention_days_s3' => ['type' => 'integer', 'description' => 'Retention days of the backup in s3'],
-                        'database_backup_retention_max_storage_s3' => ['type' => 'integer', 'description' => 'Max storage of the backup in S3'],
+                        'database_backup_retention_max_storage_s3' => ['type' => 'number', 'description' => 'Max storage of the backup in S3'],
                         'timeout' => ['type' => 'integer', 'description' => 'Backup job timeout in seconds (min: 60, max: 36000)', 'default' => 3600],
                     ],
                 ),
@@ -933,10 +933,10 @@ public function update_backup(Request $request)
             'frequency' => 'string',
             'database_backup_retention_amount_locally' => 'integer|min:0',
             'database_backup_retention_days_locally' => 'integer|min:0',
-            'database_backup_retention_max_storage_locally' => 'integer|min:0',
+            'database_backup_retention_max_storage_locally' => 'numeric|min:0',
             'database_backup_retention_amount_s3' => 'integer|min:0',
             'database_backup_retention_days_s3' => 'integer|min:0',
-            'database_backup_retention_max_storage_s3' => 'integer|min:0',
+            'database_backup_retention_max_storage_s3' => 'numeric|min:0',
             'timeout' => 'integer|min:60|max:36000',
         ]);
         if ($validator->fails()) {
diff --git a/resources/views/livewire/project/database/backup-edit.blade.php b/resources/views/livewire/project/database/backup-edit.blade.php
index d5c25916a..898283afd 100644
--- a/resources/views/livewire/project/database/backup-edit.blade.php
+++ b/resources/views/livewire/project/database/backup-edit.blade.php
@@ -106,7 +106,7 @@
                         min="0"
                         helper="Automatically removes backups older than the specified number of days. Set to 0 for no time limit." required />
                     <x-forms.input label="Maximum storage (GB)" id="databaseBackupRetentionMaxStorageLocally"
-                        type="number" min="0"
+                        type="number" min="0" step="any"
                         helper="When total size of all backups in the current backup job exceeds this limit in GB, the oldest backups will be removed. Decimal values are supported (e.g. 0.001 for 1MB). Set to 0 for unlimited storage." required />
                 </div>
             </div>
@@ -122,7 +122,7 @@
                             min="0"
                             helper="Automatically removes S3 backups older than the specified number of days. Set to 0 for no time limit." required />
                         <x-forms.input label="Maximum storage (GB)" id="databaseBackupRetentionMaxStorageS3"
-                            type="number" min="0"
+                            type="number" min="0" step="any"
                             helper="When total size of all backups in the current backup job exceeds this limit in GB, the oldest backups will be removed. Decimal values are supported (e.g. 0.5 for 500MB). Set to 0 for unlimited storage." required />
                     </div>
                 </div>