Redis migration error

Question

I tried using this tool
https://github.com/railwayapp-templates/redis-migrator

But it fails with this error
```bash
redis-migrator  | [ OK ] Successfully saved dump to /data/redis_dump.rdb
redis-migrator  | [ OK ] Dump file size: 507K
redis-migrator  | Traceback (most recent call last):
redis-migrator  |   File "/usr/local/bin/rdb", line 8, in 
redis-migrator  |     sys.exit(main())
redis-migrator  |   File "/usr/local/lib/python3.10/dist-packages/rdbtools/cli/rdb.py", line 106, in main
redis-migrator  |     parser.parse(options.dump_file[0])
redis-migrator  |   File "/usr/local/lib/python3.10/dist-packages/rdbtools/parser.py", line 394, in parse
redis-migrator  |     self.parse_fd(open(filename, "rb"))
redis-migrator  |   File "/usr/local/lib/python3.10/dist-packages/rdbtools/parser.py", line 399, in parse_fd
redis-migrator  |     self.verify_version(f.read(4))
redis-migrator  |   File "/usr/local/lib/python3.10/dist-packages/rdbtools/parser.py", line 963, in verify_version
redis-migrator  |     raise Exception('verify_version', 'Invalid RDB version number %d' % version)
redis-migrator  | Exception: ('verify_version', 'Invalid RDB version number 12')
redis-migrator  | An error occurred. Exiting...
redis-migrator exited with code 0
```