diff --git a/docs/guides/applying-custom-formatting.md b/docs/guides/applying-custom-formatting.md
index 54e0bf368..5f84291a9 100644
--- a/docs/guides/applying-custom-formatting.md
+++ b/docs/guides/applying-custom-formatting.md
@@ -84,7 +84,7 @@ class App extends React.Component {
       case 66: {
         return state
           .transform()
-          .mark('bold')
+          .addMark('bold')
           .apply()
       }
       // When "`" is pressed, keep our existing code block logic.
@@ -160,7 +160,7 @@ class App extends React.Component {
       case 66: {
         return state
           .transform()
-          .mark('bold')
+          .addMark('bold')
           .apply()
       }
       case 192: {
@@ -222,7 +222,7 @@ class App extends React.Component {
         const isBold = state.marks.some(mark => mark.type == 'bold')
         return state
           .transform()
-          [isBold ? 'unmark' : 'mark']('bold')
+          [isBold ? 'removeMark' : 'addMark']('bold')
           .apply()
       }
       case 192: {
diff --git a/docs/guides/using-plugins.md b/docs/guides/using-plugins.md
index 0f4322c39..7a33b84b7 100644
--- a/docs/guides/using-plugins.md
+++ b/docs/guides/using-plugins.md
@@ -52,7 +52,7 @@ class App extends React.Component {
     const isBold = state.marks.some(mark => mark.type == 'bold')
     return state
       .transform()
-      [isBold ? 'unmark' : 'mark']('bold')
+      [isBold ? 'removeMark' : 'addMark']('bold')
       .apply()
   }
 
@@ -90,7 +90,7 @@ function MarkHotkey(options) {
       // Toggle the mark `type` based on whether it is active.
       return state
         .transform()
-        [isActive ? 'unmark' : 'mark'](type)
+        [isActive ? 'removeMark' : 'addMark'](type)
         .apply()
     }
   }
@@ -248,7 +248,7 @@ function MarkHotkey(options) {
       const isActive = state.marks.some(mark => mark.type == type)
       return state
         .transform()
-        [isActive ? 'unmark' : 'mark'](type)
+        [isActive ? 'removeMark' : 'addMark'](type)
         .apply()
     }
   }
diff --git a/docs/reference/models/transform.md b/docs/reference/models/transform.md
index c806731f2..ba3048c44 100644
--- a/docs/reference/models/transform.md
+++ b/docs/reference/models/transform.md
@@ -17,12 +17,12 @@ Transform methods can either operate on the [`Document`](./document.md), the [`S
   - [`delete`](#delete)
   - [`insertFragment`](#insertfragment)
   - [`insertText`](#inserttext)
-  - [`mark`](#mark)
+  - [`addMark`](#addmark)
   - [`setBlock`](#setblock)
   - [`setInline`](#setinline)
   - [`splitBlock`](#splitblock)
   - [`splitInline`](#splitinline)
-  - [`unmark`](#unmark)
+  - [`removeMark`](#removemark)
   - [`unwrapBlock`](#unwrapblock)
   - [`unwrapInline`](#unwrapinline)
   - [`wrapBlock`](#wrapblock)
@@ -46,12 +46,12 @@ Transform methods can either operate on the [`Document`](./document.md), the [`S
   - [`deleteForwardAtRange`](#deleteforwardatrange)
   - [`insertFragmentAtRange`](#insertfragmentatrange)
   - [`insertTextAtRange`](#inserttextatrange)
-  - [`markAtRange`](#markatrange)
+  - [`addMarkAtRange`](#addmarkatrange)
   - [`setBlockAtRange`](#setblockatrange)
   - [`setInlineAtRange`](#setinlineatrange)
   - [`splitBlockAtRange`](#splitblockatrange)
   - [`splitInlineAtRange`](#splitinlineatrange)
-  - [`unmarkAtRange`](#unmarkatrange)
+  - [`removeMarkAtRange`](#removeMarkatrange)
   - [`unwrapBlockAtRange`](#unwrapblockatrange)
   - [`unwrapInlineAtRange`](#unwrapinlineatrange)
   - [`wrapBlockAtRange`](#wrapblockatrange)
@@ -90,9 +90,9 @@ Insert a `fragment` at the current selection. If the selection is expanded, it w
 
 Insert a string of `text` at the current selection. If the selection is expanded, it will be deleted first.
 
-### `mark`
-`mark(mark: Mark) => Transform`
-`mark(type: String) => Transform`
+### `addMark`
+`addMark(mark: Mark) => Transform`
+`addMark(type: String) => Transform`
 
 Add a [`mark`](./mark.md) to the characters in the current selection. For convenience, you can pass a `type` string to implicitly create a [`Mark`](./mark.md) of that type.
 
@@ -118,9 +118,9 @@ Split the [`Block`](./block.md) in the current selection by `depth` levels. If t
 
 Split the [`Inline`](./inline.md) node in the current selection by `depth` levels. If the selection is expanded, it will be deleted first. `depth` defaults to `Infinity`.
 
-### `unmark`
-`unmark(mark: Mark) => Transform`
-`unmark(type: String) => Transform`
+### `removeMark`
+`removeMark(mark: Mark) => Transform`
+`removeMark(type: String) => Transform`
 
 Remove a [`mark`](./mark.md) from the characters in the current selection. For convenience, you can pass a `type` string to implicitly create a [`Mark`](./mark.md) of that type.
 
@@ -235,9 +235,9 @@ Insert a `fragment` at a `range`. If the selection is expanded, it will be delet
 
 Insert a string of `text` at a `range`. If the selection is expanded, it will be deleted first.
 
-### `markAtRange`
-`markAtRange(range: Selection, mark: Mark) => Transform`
-`mark(range: Selection, type: String) => Transform`
+### `addMarkAtRange`
+`addMarkAtRange(range: Selection, mark: Mark) => Transform`
+`addMark(range: Selection, type: String) => Transform`
 
 Add a [`mark`](./mark.md) to the characters in a `range`. For convenience, you can pass a `type` string to implicitly create a [`Mark`](./mark.md) of that type.
 
@@ -263,9 +263,9 @@ Split the [`Block`](./block.md) in a `range` by `depth` levels. If the selection
 
 Split the [`Inline`](./inline.md) node in a `range` by `depth` levels. If the selection is expanded, it will be deleted first. `depth` defaults to `Infinity`.
 
-### `unmarkAtRange`
-`unmarkAtRange(range: Selection, mark: Mark) => Transform`
-`unmark(range: Selection, type: String) => Transform`
+### `removeMarkAtRange`
+`removeMarkAtRange(range: Selection, mark: Mark) => Transform`
+`removeMark(range: Selection, type: String) => Transform`
 
 Remove a [`mark`](./mark.md) from the characters in a `range`. For convenience, you can pass a `type` string to implicitly create a [`Mark`](./mark.md) of that type.
 
diff --git a/examples/hovering-menu/index.js b/examples/hovering-menu/index.js
index a7df79657..b08773563 100644
--- a/examples/hovering-menu/index.js
+++ b/examples/hovering-menu/index.js
@@ -95,7 +95,7 @@ class HoveringMenu extends React.Component {
 
     state = state
       .transform()
-      [isActive ? 'unmark' : 'mark'](type)
+      [isActive ? 'removeMark' : 'addMark'](type)
       .apply()
 
     this.setState({ state })
diff --git a/examples/rich-text/index.js b/examples/rich-text/index.js
index 1b8cfbc57..f3a48e327 100644
--- a/examples/rich-text/index.js
+++ b/examples/rich-text/index.js
@@ -133,7 +133,7 @@ class RichText extends React.Component {
 
     state = state
       .transform()
-      [this.hasMark(mark) ? 'unmark' : 'mark'](mark)
+      [this.hasMark(mark) ? 'removeMark' : 'addMark'](mark)
       .apply()
 
     e.preventDefault()
@@ -154,7 +154,7 @@ class RichText extends React.Component {
 
     state = state
       .transform()
-      [isActive ? 'unmark' : 'mark'](type)
+      [isActive ? 'removeMark' : 'addMark'](type)
       .apply()
 
     this.setState({ state })
diff --git a/lib/models/state.js b/lib/models/state.js
index f4a073b59..9c0143bd6 100644
--- a/lib/models/state.js
+++ b/lib/models/state.js
@@ -700,7 +700,7 @@ class State extends new Record(DEFAULTS) {
    * @return {State} state
    */
 
-  mark(mark) {
+  addMark(mark) {
     let state = this
     let { cursorMarks, document, selection } = state
 
@@ -712,7 +712,7 @@ class State extends new Record(DEFAULTS) {
       return state
     }
 
-    document = document.markAtRange(selection, mark)
+    document = document.addMarkAtRange(selection, mark)
     state = state.merge({ document })
     return state
   }
@@ -826,7 +826,7 @@ class State extends new Record(DEFAULTS) {
    * @return {State} state
    */
 
-  unmark(mark) {
+  removeMark(mark) {
     let state = this
     let { cursorMarks, document, selection } = state
 
@@ -838,7 +838,7 @@ class State extends new Record(DEFAULTS) {
       return state
     }
 
-    document = document.unmarkAtRange(selection, mark)
+    document = document.removeMarkAtRange(selection, mark)
     state = state.merge({ document })
     return state
   }
diff --git a/lib/models/transform.js b/lib/models/transform.js
index 7e805ee52..bb63c1d03 100644
--- a/lib/models/transform.js
+++ b/lib/models/transform.js
@@ -32,12 +32,12 @@ const DOCUMENT_TRANSFORMS = [
   'deleteForwardAtRange',
   'insertFragmentAtRange',
   'insertTextAtRange',
-  'markAtRange',
+  'addMarkAtRange',
   'setBlockAtRange',
   'setInlineAtRange',
   'splitBlockAtRange',
   'splitInlineAtRange',
-  'unmarkAtRange',
+  'removeMarkAtRange',
   'unwrapBlockAtRange',
   'unwrapInlineAtRange',
   'wrapBlockAtRange',
@@ -85,13 +85,13 @@ const STATE_TRANSFORMS = [
   'deleteForward',
   'insertFragment',
   'insertText',
-  'mark',
+  'addMark',
   'moveTo',
   'setBlock',
   'setInline',
   'splitBlock',
   'splitInline',
-  'unmark',
+  'removeMark',
   'unwrapBlock',
   'unwrapInline',
   'wrapBlock',
diff --git a/lib/models/transforms.js b/lib/models/transforms.js
index ec1e988fe..9e106f263 100644
--- a/lib/models/transforms.js
+++ b/lib/models/transforms.js
@@ -310,7 +310,7 @@ const Transforms = {
    * @return {Node} node
    */
 
-  markAtRange(range, mark) {
+  addMarkAtRange(range, mark) {
     let node = this
 
     // Allow for just passing a type for convenience.
@@ -565,7 +565,7 @@ const Transforms = {
    * @return {Node} node
    */
 
-  unmarkAtRange(range, mark) {
+  removeMarkAtRange(range, mark) {
     let node = this
 
     // Allow for just passing a type for convenience.
diff --git a/test/transforms/fixtures/mark-at-range/across-blocks/index.js b/test/transforms/fixtures/mark-at-range/across-blocks/index.js
index f0a762f29..a7033464b 100644
--- a/test/transforms/fixtures/mark-at-range/across-blocks/index.js
+++ b/test/transforms/fixtures/mark-at-range/across-blocks/index.js
@@ -13,6 +13,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold')
+    .addMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/across-inlines/index.js b/test/transforms/fixtures/mark-at-range/across-inlines/index.js
index f0a762f29..a7033464b 100644
--- a/test/transforms/fixtures/mark-at-range/across-inlines/index.js
+++ b/test/transforms/fixtures/mark-at-range/across-inlines/index.js
@@ -13,6 +13,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold')
+    .addMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/existing-marks/index.js b/test/transforms/fixtures/mark-at-range/existing-marks/index.js
index 0bccf13fc..153f10068 100644
--- a/test/transforms/fixtures/mark-at-range/existing-marks/index.js
+++ b/test/transforms/fixtures/mark-at-range/existing-marks/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold')
+    .addMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/first-character/index.js b/test/transforms/fixtures/mark-at-range/first-character/index.js
index ab40cb1a7..1947337df 100644
--- a/test/transforms/fixtures/mark-at-range/first-character/index.js
+++ b/test/transforms/fixtures/mark-at-range/first-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold')
+    .addMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/last-character/index.js b/test/transforms/fixtures/mark-at-range/last-character/index.js
index 1f3ccccf3..2c59690e1 100644
--- a/test/transforms/fixtures/mark-at-range/last-character/index.js
+++ b/test/transforms/fixtures/mark-at-range/last-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold')
+    .addMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/middle-character/index.js b/test/transforms/fixtures/mark-at-range/middle-character/index.js
index aa750c287..a5d0aacaf 100644
--- a/test/transforms/fixtures/mark-at-range/middle-character/index.js
+++ b/test/transforms/fixtures/mark-at-range/middle-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold')
+    .addMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/whole-word/index.js b/test/transforms/fixtures/mark-at-range/whole-word/index.js
index 761dfcede..0073dbe5a 100644
--- a/test/transforms/fixtures/mark-at-range/whole-word/index.js
+++ b/test/transforms/fixtures/mark-at-range/whole-word/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold')
+    .addMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/with-data-object/index.js b/test/transforms/fixtures/mark-at-range/with-data-object/index.js
index f3f3e405e..8ffe31c85 100644
--- a/test/transforms/fixtures/mark-at-range/with-data-object/index.js
+++ b/test/transforms/fixtures/mark-at-range/with-data-object/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold', { key: 'value' })
+    .addMarkAtRange(range, 'bold', { key: 'value' })
     .apply()
 }
diff --git a/test/transforms/fixtures/mark-at-range/with-data/index.js b/test/transforms/fixtures/mark-at-range/with-data/index.js
index 61fc70281..97cf6bdb5 100644
--- a/test/transforms/fixtures/mark-at-range/with-data/index.js
+++ b/test/transforms/fixtures/mark-at-range/with-data/index.js
@@ -14,6 +14,6 @@ export default function (state) {
 
   return state
     .transform()
-    .markAtRange(range, 'bold', Data.create({ key: 'value' }))
+    .addMarkAtRange(range, 'bold', Data.create({ key: 'value' }))
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/across-blocks/index.js b/test/transforms/fixtures/mark/across-blocks/index.js
index 4b18c0457..394b5c49e 100644
--- a/test/transforms/fixtures/mark/across-blocks/index.js
+++ b/test/transforms/fixtures/mark/across-blocks/index.js
@@ -13,6 +13,6 @@ export default function (state) {
       focusKey: second.key,
       focusOffset: 2
     })
-    .mark('bold')
+    .addMark('bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/across-inlines/index.js b/test/transforms/fixtures/mark/across-inlines/index.js
index 4b18c0457..394b5c49e 100644
--- a/test/transforms/fixtures/mark/across-inlines/index.js
+++ b/test/transforms/fixtures/mark/across-inlines/index.js
@@ -13,6 +13,6 @@ export default function (state) {
       focusKey: second.key,
       focusOffset: 2
     })
-    .mark('bold')
+    .addMark('bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/collapsed-selection-off-again/index.js b/test/transforms/fixtures/mark/collapsed-selection-off-again/index.js
index 962dc40e3..894edd0cb 100644
--- a/test/transforms/fixtures/mark/collapsed-selection-off-again/index.js
+++ b/test/transforms/fixtures/mark/collapsed-selection-off-again/index.js
@@ -12,9 +12,9 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: 0
     })
-    .mark('bold')
+    .addMark('bold')
     .insertText('a')
-    .unmark('bold')
+    .removeMark('bold')
     .insertText('b')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/collapsed-selection/index.js b/test/transforms/fixtures/mark/collapsed-selection/index.js
index ba6c09e19..ef5cf604b 100644
--- a/test/transforms/fixtures/mark/collapsed-selection/index.js
+++ b/test/transforms/fixtures/mark/collapsed-selection/index.js
@@ -12,7 +12,7 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: 0
     })
-    .mark('bold')
+    .addMark('bold')
     .insertText('a')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/existing-marks/index.js b/test/transforms/fixtures/mark/existing-marks/index.js
index b28f088e8..a48f3652d 100644
--- a/test/transforms/fixtures/mark/existing-marks/index.js
+++ b/test/transforms/fixtures/mark/existing-marks/index.js
@@ -12,6 +12,6 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: 2
     })
-    .mark('bold')
+    .addMark('bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/first-character/index.js b/test/transforms/fixtures/mark/first-character/index.js
index b7d99872b..27ef0a76a 100644
--- a/test/transforms/fixtures/mark/first-character/index.js
+++ b/test/transforms/fixtures/mark/first-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: 1
     })
-    .mark('bold')
+    .addMark('bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/last-character/index.js b/test/transforms/fixtures/mark/last-character/index.js
index 240a30cee..5a32590cd 100644
--- a/test/transforms/fixtures/mark/last-character/index.js
+++ b/test/transforms/fixtures/mark/last-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: first.length
     })
-    .mark('bold')
+    .addMark('bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/middle-character/index.js b/test/transforms/fixtures/mark/middle-character/index.js
index b29f9620b..536b2a882 100644
--- a/test/transforms/fixtures/mark/middle-character/index.js
+++ b/test/transforms/fixtures/mark/middle-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: 2
     })
-    .mark('bold')
+    .addMark('bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/whole-word/index.js b/test/transforms/fixtures/mark/whole-word/index.js
index 592dc8443..8c09ae039 100644
--- a/test/transforms/fixtures/mark/whole-word/index.js
+++ b/test/transforms/fixtures/mark/whole-word/index.js
@@ -12,6 +12,6 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: first.length
     })
-    .mark('bold')
+    .addMark('bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/with-data-object/index.js b/test/transforms/fixtures/mark/with-data-object/index.js
index a5c893467..490c39bb5 100644
--- a/test/transforms/fixtures/mark/with-data-object/index.js
+++ b/test/transforms/fixtures/mark/with-data-object/index.js
@@ -12,6 +12,6 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: 1
     })
-    .mark('bold', { key: 'value' })
+    .addMark('bold', { key: 'value' })
     .apply()
 }
diff --git a/test/transforms/fixtures/mark/with-data/index.js b/test/transforms/fixtures/mark/with-data/index.js
index 7c8263e1c..438cb3853 100644
--- a/test/transforms/fixtures/mark/with-data/index.js
+++ b/test/transforms/fixtures/mark/with-data/index.js
@@ -14,6 +14,6 @@ export default function (state) {
       focusKey: first.key,
       focusOffset: 1
     })
-    .mark('bold', Data.create({ key: 'value' }))
+    .addMark('bold', Data.create({ key: 'value' }))
     .apply()
 }
diff --git a/test/transforms/fixtures/unmark-at-range/across-blocks/index.js b/test/transforms/fixtures/unmark-at-range/across-blocks/index.js
index 2f4164301..fdc8a9640 100644
--- a/test/transforms/fixtures/unmark-at-range/across-blocks/index.js
+++ b/test/transforms/fixtures/unmark-at-range/across-blocks/index.js
@@ -13,6 +13,6 @@ export default function (state) {
 
   return state
     .transform()
-    .unmarkAtRange(range, 'bold')
+    .removeMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/unmark-at-range/across-inlines/index.js b/test/transforms/fixtures/unmark-at-range/across-inlines/index.js
index 2f4164301..fdc8a9640 100644
--- a/test/transforms/fixtures/unmark-at-range/across-inlines/index.js
+++ b/test/transforms/fixtures/unmark-at-range/across-inlines/index.js
@@ -13,6 +13,6 @@ export default function (state) {
 
   return state
     .transform()
-    .unmarkAtRange(range, 'bold')
+    .removeMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/unmark-at-range/existing-marks/index.js b/test/transforms/fixtures/unmark-at-range/existing-marks/index.js
index 67686382f..7883ecda7 100644
--- a/test/transforms/fixtures/unmark-at-range/existing-marks/index.js
+++ b/test/transforms/fixtures/unmark-at-range/existing-marks/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .unmarkAtRange(range, 'bold')
+    .removeMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/unmark-at-range/first-character/index.js b/test/transforms/fixtures/unmark-at-range/first-character/index.js
index f8b39860f..918eed955 100644
--- a/test/transforms/fixtures/unmark-at-range/first-character/index.js
+++ b/test/transforms/fixtures/unmark-at-range/first-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .unmarkAtRange(range, 'bold')
+    .removeMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/unmark-at-range/last-character/index.js b/test/transforms/fixtures/unmark-at-range/last-character/index.js
index 7c0949b67..bfc44defd 100644
--- a/test/transforms/fixtures/unmark-at-range/last-character/index.js
+++ b/test/transforms/fixtures/unmark-at-range/last-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .unmarkAtRange(range, 'bold')
+    .removeMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/unmark-at-range/middle-character/index.js b/test/transforms/fixtures/unmark-at-range/middle-character/index.js
index 0c6226f55..16ad6995f 100644
--- a/test/transforms/fixtures/unmark-at-range/middle-character/index.js
+++ b/test/transforms/fixtures/unmark-at-range/middle-character/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .unmarkAtRange(range, 'bold')
+    .removeMarkAtRange(range, 'bold')
     .apply()
 }
diff --git a/test/transforms/fixtures/unmark-at-range/whole-word/index.js b/test/transforms/fixtures/unmark-at-range/whole-word/index.js
index e14846e4b..8358c358f 100644
--- a/test/transforms/fixtures/unmark-at-range/whole-word/index.js
+++ b/test/transforms/fixtures/unmark-at-range/whole-word/index.js
@@ -12,6 +12,6 @@ export default function (state) {
 
   return state
     .transform()
-    .unmarkAtRange(range, 'bold')
+    .removeMarkAtRange(range, 'bold')
     .apply()
 }