diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 2dea81e0..11a28712 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 - `New` – Block Tunes now supports nesting items
 - `New` – Block Tunes now supports separator items
+- `Improvment` - The API `blocks.update` now accepts `tunes` data as optional third argument and makes `data` - block data as optional.
 - `New` – "Convert to" control is now also available in Block Tunes
 - `Improvement` — The ability to merge blocks of different types (if both tools provide the conversionConfig)
 - `Fix` — `onChange` will be called when removing the entire text within a descendant element of a block.
diff --git a/docs/api.md b/docs/api.md
index 3111cbf8..4c7f708d 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -79,7 +79,7 @@ use 'move' instead)
 
 `insert(type?: string, data?: BlockToolData, config?: ToolConfig, index?: number, needToFocus?: boolean)` - insert new Block with passed parameters
 
-`update(id: string, data: BlockToolData)` - updates data for the block with passed id
+`update(id: string, data?: BlockToolData, tunes?: {[name: string]: BlockTuneData})` - updates block data and block tunes for the block with passed id
 
 #### SanitizerAPI
 
diff --git a/src/components/modules/api/blocks.ts b/src/components/modules/api/blocks.ts
index dbb7831a..6c0c5869 100644
--- a/src/components/modules/api/blocks.ts
+++ b/src/components/modules/api/blocks.ts
@@ -4,7 +4,8 @@ import * as _ from './../../utils';
 import BlockAPI from '../../block/api';
 import Module from '../../__module';
 import Block from '../../block';
-import { capitalize } from './../../utils';
+import { capitalize } from '../../utils';
+import { BlockTuneData } from '../../../../types/block-tunes/block-tune-data';
 
 /**
  * @class BlocksAPI
@@ -320,9 +321,10 @@ export default class BlocksAPI extends Module {
    * Updates block data by id
    *
    * @param id - id of the block to update
-   * @param data - the new data
+   * @param data - (optional) the new data
+   * @param tunes - (optional) tune data
    */
-  public update = async (id: string, data: Partial<BlockToolData>): Promise<BlockAPIInterface> => {
+  public update = async (id: string, data?: Partial<BlockToolData>, tunes?: {[name: string]: BlockTuneData}): Promise<BlockAPIInterface> => {
     const { BlockManager } = this.Editor;
     const block = BlockManager.getBlockById(id);
 
@@ -330,7 +332,7 @@ export default class BlocksAPI extends Module {
       throw new Error(`Block with id "${id}" not found`);
     }
 
-    const updatedBlock = await BlockManager.update(block, data);
+    const updatedBlock = await BlockManager.update(block, data, tunes);
 
     // we cast to any because our BlockAPI has no "new" signature
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
diff --git a/src/components/modules/blockManager.ts b/src/components/modules/blockManager.ts
index 3442c0bd..ec555f20 100644
--- a/src/components/modules/blockManager.ts
+++ b/src/components/modules/blockManager.ts
@@ -337,19 +337,26 @@ export default class BlockManager extends Module {
    * Update Block data.
    *
    * Currently we don't have an 'update' method in the Tools API, so we just create a new block with the same id and type
-   * Should not trigger 'block-removed' or 'block-added' events
+   * Should not trigger 'block-removed' or 'block-added' events.
+   *
+   * If neither data nor tunes is provided, return the provided block instead.
    *
    * @param block - block to update
-   * @param data - new data
+   * @param data - (optional) new data
+   * @param tunes - (optional) tune data
    */
-  public async update(block: Block, data: Partial<BlockToolData>): Promise<Block> {
+  public async update(block: Block, data?: Partial<BlockToolData>, tunes?: {[name: string]: BlockTuneData}): Promise<Block> {
+    if (!data && !tunes) {
+      return block;
+    }
+
     const existingData = await block.data;
 
     const newBlock = this.composeBlock({
       id: block.id,
       tool: block.name,
-      data: Object.assign({}, existingData, data),
-      tunes: block.tunes,
+      data: Object.assign({}, existingData, data ?? {}),
+      tunes: tunes ?? block.tunes,
     });
 
     const blockIndex = this.getBlockIndex(block);
diff --git a/test/cypress/tests/api/blocks.cy.ts b/test/cypress/tests/api/blocks.cy.ts
index 77f25e91..66496bf7 100644
--- a/test/cypress/tests/api/blocks.cy.ts
+++ b/test/cypress/tests/api/blocks.cy.ts
@@ -1,6 +1,7 @@
 import type EditorJS from '../../../../types/index';
 import type { ConversionConfig, ToolboxConfig } from '../../../../types';
 import ToolMock from '../../fixtures/tools/ToolMock';
+import {nanoid} from "nanoid";
 
 /**
  * There will be described test cases of 'blocks.*' API
@@ -102,6 +103,94 @@ describe('api.blocks', () => {
       });
     });
 
+    it('should update tune data when it is provided', () => {
+      /**
+       * Example Tune Class
+       */
+      class ExampleTune {
+
+        protected data: object;
+        /**
+         *
+         * @param data
+         */
+        constructor({ data}) {
+          this.data = data;
+        }
+
+        /**
+         * Tell editor.js that this Tool is a Block Tune
+         *
+         * @returns {boolean}
+         */
+        public static get isTune(): boolean {
+          return true;
+        }
+
+        /**
+         * Create Tunes controls wrapper that will be appended to the Block Tunes panel
+         *
+         * @returns {Element}
+         */
+        public render(): Element {
+          return document.createElement('div');
+        }
+
+        /**
+         * CSS selectors used in Tune
+         */
+        public static get CSS(): object {
+          return {};
+        }
+
+        /**
+         * Returns Tune state
+         *
+         * @returns {string}
+         */
+        public save(): object | string {
+          return this.data || '';
+        }
+      }
+
+
+      cy.createEditor({
+        tools: {
+          exampleTune: ExampleTune,
+        },
+        tunes: [ 'exampleTune' ],
+        data: {
+          blocks: [
+            {
+              id: nanoid(),
+              type: 'paragraph',
+              data: {
+                text: 'First block',
+              },
+              tunes: {
+                exampleTune: 'citation',
+              },
+            },
+          ],
+        },
+      }).as('editorInstance');
+
+      // Update the tunes data of a block
+      // Check if it is updated
+      cy.get<EditorJS>('@editorInstance')
+        .then(async (editor) => {
+          await editor.blocks.update(editor.blocks.getBlockByIndex(0).id, null, {
+            exampleTune: 'test',
+          });
+          const data = await editor.save();
+
+          const actual = JSON.stringify(data.blocks[0].tunes);
+          const expected = JSON.stringify({ exampleTune: 'test' });
+
+          expect(actual).to.eq(expected);
+        });
+    });
+
     /**
      * When incorrect id passed, editor should not update any block
      */
diff --git a/types/api/blocks.d.ts b/types/api/blocks.d.ts
index 5085e99b..7b9a0455 100644
--- a/types/api/blocks.d.ts
+++ b/types/api/blocks.d.ts
@@ -2,6 +2,7 @@ import Block from '../../src/components/block';
 import {OutputBlockData, OutputData} from '../data-formats/output-data';
 import {BlockToolData, ToolConfig} from '../tools';
 import {BlockAPI} from './block';
+import {BlockTuneData} from '../block-tunes/block-tune-data';
 
 /**
  * Describes methods to manipulate with Editor`s blocks
@@ -142,9 +143,10 @@ export interface Blocks {
    * Updates block data by id
    *
    * @param id - id of the block to update
-   * @param data - the new data. Can be partial.
+   * @param data - (optional) the new data. Can be partial.
+   * @param tunes - (optional) tune data
    */
-  update(id: string, data: Partial<BlockToolData>): Promise<BlockAPI>;
+  update(id: string, data?: Partial<BlockToolData>, tunes?: {[name: string]: BlockTuneData}): Promise<BlockAPI>;
 
   /**
    * Converts block to another type. Both blocks should provide the conversionConfig.