Package mirage-crypto-rng

Failed to find a solution:

no platform:
2024-03-05 21:47.28 [INFO] Solving for ocaml-base-compiler, ocaml,
                           mirage-crypto-rng using opam_repository_commit 3f84051bba2dea78fb8f004d75421604ad53b166

2024-03-05 21:47.31 [INFO] base: eliminated all possibilities in 1.86 s

2024-03-05 21:47.31 [INFO] = base =

2024-03-05 21:47.31 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-bytes.base base-domains.base base-nnp.base
          base-threads.base base-unix.base cppo.1.6.9 csexp.1.5.2
          cstruct.6.2.0 dune.3.14.0 dune-configurator.3.14.0 duration.0.2.1
          fmt.0.9.0 logs.0.7.0 lwt.5.7.0 mtime.2.0.0 ocaml-config.3
          ocaml-options-vanilla.1 ocamlbuild.0.14.3 ocamlfind.1.9.6
          ocplib-endian.1.2 topkg.1.0.7
          mirage-crypto-rng&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml base-domains ocaml ocaml-base-compiler
- mirage-crypto -> (problem)
    mirage-crypto-rng 0.8.3 requires = 0.8.3
    Rejected candidates:
      mirage-crypto.0.11.3: Incompatible with restriction: = 0.8.3
      mirage-crypto.0.11.2: Incompatible with restriction: = 0.8.3
      mirage-crypto.0.11.1: Incompatible with restriction: = 0.8.3
      mirage-crypto.0.11.0: Incompatible with restriction: = 0.8.3
      mirage-crypto.0.10.7: Incompatible with restriction: = 0.8.3
      ...
- mirage-crypto-rng -> mirage-crypto-rng.0.8.3
    User requested = 0.8.3
- ocaml -> ocaml.5.1.0
    User requested <= 5.1.0
- ocaml-base-compiler -> ocaml-base-compiler.5.1.0
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.0~ & < 5.1.1~