diff --git a/packages/effect-lens/README.md b/packages/effect-lens/README.md
index eeac5c1..6f94f9f 100644
--- a/packages/effect-lens/README.md
+++ b/packages/effect-lens/README.md
@@ -159,9 +159,11 @@ Currently available:
 | Name | Description | Parent state mutation behavior | Notes |
 | - | - | - | - |
 | `focusObjectField` | Focuses to the field of an object. Replaces the parent object immutably when writing to the focused field | Immutable | |
-| `focusObjectMutableField` | Focuses to the field of an object. Mutates the parent object in place via the writable field | Mutable | Type-safe: will not allow you to mutate `readonly` fields |
+| `focusObjectMutableField` | Focuses to the writable field of an object. Mutates the parent object in place via the writable field | Mutable | Type-safe: will not allow you to mutate `readonly` fields |
 | `focusArrayAt` | Focuses to an indexed entry of an array. Replaces the parent array immutably when writing to the focused index | Immutable | |
 | `focusMutableArrayAt` | Focuses to an indexed entry of an array. Mutates the parent array in place at the focused index | Mutable | Type-safe: will not allow you to mutate `readonly` arrays |
+| `focusTupleAt` | Focuses to an indexed entry of a readonly tuple. Replaces the parent tuple immutably when writing to the focused index | Immutable | |
+| `focusMutableTupleAt` | Focuses to an indexed entry of a mutable tuple. Mutates the parent tuple in place at the focused index | Mutable | Type-safe: will not allow you to mutate `readonly` tuples |
 | `focusChunkAt` | Focuses to an indexed entry of a `Chunk`. Replaces the parent `Chunk` immutably when writing to the focused element | Immutable | |
 
 Also more to come!