diff --git a/README.md b/README.md
index ca0e1c6..b9ff0a7 100644
--- a/README.md
+++ b/README.md
@@ -210,6 +210,7 @@ Refer to the [documentation](https://table2ascii.readthedocs.io/en/stable/api.ht
| `footer` | `Sequence[SupportsStr]`, `None`
(Default: `None`) | Last table row seperated by header row separator. Values should support `str()` |
| `column_widths` | `Sequence[Optional[int]]`, `None`
(Default: `None` / automatic) | List of column widths in characters for each column |
| `alignments` | `Sequence[Alignment]`, `Alignment`, `None`
(Default: `None` / all centered) | Column alignments
(ex. `[Alignment.LEFT, Alignment.CENTER, Alignment.RIGHT, Alignment.DECIMAL]`) |
+| `number_alignments` | `Sequence[Alignment]`, `Alignment`, `None`
(Default: `None`) | Column alignments for numeric values. `alignments` will be used if not specified. |
| `style` | `TableStyle`
(Default: `double_thin_compact`) | Table style to use for the table\* |
| `first_col_heading` | `bool`
(Default: `False`) | Whether to add a heading column separator after the first column |
| `last_col_heading` | `bool`
(Default: `False`) | Whether to add a heading column separator before the last column |
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