RDatasets.datasets(package_name) returns only one row

[essenciary]

julia> RDatasets.datasets("datasets")
1×5 DataFrame
│ Row │ Package  │ Dataset │ Title                     │ Rows │ Columns │
├─────┼──────────┼─────────┼───────────────────────────┼──────┼─────────┤
│ 1   │ datasets │ BOD     │ Biochemical Oxygen Demand │ 6    │ 2       │

julia> RDatasets.datasets("mlmRev")
1×5 DataFrame
│ Row │ Package │ Dataset │ Title                               │ Rows  │ Columns │
├─────┼─────────┼─────────┼─────────────────────────────────────┼───────┼─────────┤
│ 1   │ mlmRev  │ Chem97  │ Scores on A-level Chemistry in 1997 │ 31022 │ 8       │

julia> versioninfo()
Julia Version 1.0.0
Commit 5d4eaca0c9 (2018-08-08 20:58 UTC)
Platform Info:
  OS: macOS (x86_64-apple-darwin14.5.0)
  CPU: Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-6.0.0 (ORCJIT, skylake)