diff --git a/package.json b/package.json
index 66e35cc..b078b30 100644
--- a/package.json
+++ b/package.json
@@ -11,12 +11,13 @@
   ],
   "dependencies": {
     "@ckeditor/ckeditor5-core": "^11.0.1",
-    "@ckeditor/ckeditor5-engine": "^11.0.0",
     "@ckeditor/ckeditor5-ui": "^11.1.0",
     "@ckeditor/ckeditor5-utils": "^11.0.0"
   },
   "devDependencies": {
+    "@ckeditor/ckeditor5-basic-styles": "^10.0.3",
     "@ckeditor/ckeditor5-editor-classic": "^11.0.1",
+    "@ckeditor/ckeditor5-engine": "^11.0.0",
     "@ckeditor/ckeditor5-enter": "^10.1.2",
     "@ckeditor/ckeditor5-essentials": "^10.1.2",
     "@ckeditor/ckeditor5-heading": "^10.1.0",
@@ -24,8 +25,6 @@
     "@ckeditor/ckeditor5-list": "^11.0.2",
     "@ckeditor/ckeditor5-paragraph": "^10.0.3",
     "@ckeditor/ckeditor5-typing": "^11.0.1",
-    "@ckeditor/ckeditor5-engine": "^10.2.0",
-    "@ckeditor/ckeditor5-basic-styles": "^10.0.3",
     "eslint": "^5.5.0",
     "eslint-config-ckeditor5": "^1.0.7",
     "husky": "^0.14.3",
diff --git a/src/blockquotecommand.js b/src/blockquotecommand.js
index 371b590..fff494b 100644
--- a/src/blockquotecommand.js
+++ b/src/blockquotecommand.js
@@ -9,9 +9,6 @@
 
 import Command from '@ckeditor/ckeditor5-core/src/command';
 
-import Position from '@ckeditor/ckeditor5-engine/src/model/position';
-import Element from '@ckeditor/ckeditor5-engine/src/model/element';
-import Range from '@ckeditor/ckeditor5-engine/src/model/range';
 import first from '@ckeditor/ckeditor5-utils/src/first';
 
 /**
@@ -113,7 +110,7 @@ export default class BlockQuoteCommand extends Command {
 	 */
 	_removeQuote( writer, blocks ) {
 		// Unquote all groups of block. Iterate in the reverse order to not break following ranges.
-		getRangesOfBlockGroups( blocks ).reverse().forEach( groupRange => {
+		getRangesOfBlockGroups( writer, blocks ).reverse().forEach( groupRange => {
 			if ( groupRange.start.isAtStart && groupRange.end.isAtEnd ) {
 				writer.unwrap( groupRange.start.parent );
 
@@ -122,7 +119,7 @@ export default class BlockQuoteCommand extends Command {
 
 			// The group of blocks are at the beginning of an <bQ> so let's move them left (out of the <bQ>).
 			if ( groupRange.start.isAtStart ) {
-				const positionBefore = Position.createBefore( groupRange.start.parent );
+				const positionBefore = writer.createPositionBefore( groupRange.start.parent );
 
 				writer.move( groupRange, positionBefore );
 
@@ -137,7 +134,7 @@ export default class BlockQuoteCommand extends Command {
 
 			// Now we are sure that groupRange.end.isAtEnd is true, so let's move the blocks right.
 
-			const positionAfter = Position.createAfter( groupRange.end.parent );
+			const positionAfter = writer.createPositionAfter( groupRange.end.parent );
 
 			writer.move( groupRange, positionAfter );
 		} );
@@ -154,11 +151,11 @@ export default class BlockQuoteCommand extends Command {
 		const quotesToMerge = [];
 
 		// Quote all groups of block. Iterate in the reverse order to not break following ranges.
-		getRangesOfBlockGroups( blocks ).reverse().forEach( groupRange => {
+		getRangesOfBlockGroups( writer, blocks ).reverse().forEach( groupRange => {
 			let quote = findQuote( groupRange.start );
 
 			if ( !quote ) {
-				quote = new Element( 'blockQuote' );
+				quote = writer.createElement( 'blockQuote' );
 
 				writer.wrap( groupRange, quote );
 			}
@@ -172,7 +169,7 @@ export default class BlockQuoteCommand extends Command {
 		// we want to keep the reference to the first (furthest left) one.
 		quotesToMerge.reverse().reduce( ( currentQuote, nextQuote ) => {
 			if ( currentQuote.nextSibling == nextQuote ) {
-				writer.merge( Position.createAfter( currentQuote ) );
+				writer.merge( writer.createPositionAfter( currentQuote ) );
 
 				return currentQuote;
 			}
@@ -194,7 +191,7 @@ function findQuote( elementOrPosition ) {
 //
 // @param {Array.<module:engine/model/element~Element>} blocks
 // @returns {Array.<module:engine/model/range~Range>}
-function getRangesOfBlockGroups( blocks ) {
+function getRangesOfBlockGroups( writer, blocks ) {
 	let startPosition;
 	let i = 0;
 	const ranges = [];
@@ -204,11 +201,11 @@ function getRangesOfBlockGroups( blocks ) {
 		const nextBlock = blocks[ i + 1 ];
 
 		if ( !startPosition ) {
-			startPosition = Position.createBefore( block );
+			startPosition = writer.createPositionBefore( block );
 		}
 
 		if ( !nextBlock || block.nextSibling != nextBlock ) {
-			ranges.push( new Range( startPosition, Position.createAfter( block ) ) );
+			ranges.push( writer.createRange( startPosition, writer.createPositionAfter( block ) ) );
 			startPosition = null;
 		}
 
diff --git a/src/blockquoteediting.js b/src/blockquoteediting.js
index fdb907d..a6304f2 100644
--- a/src/blockquoteediting.js
+++ b/src/blockquoteediting.js
@@ -8,8 +8,6 @@
  */
 
 import Plugin from '@ckeditor/ckeditor5-core/src/plugin';
-import Range from '@ckeditor/ckeditor5-engine/src/model/range';
-import Position from '@ckeditor/ckeditor5-engine/src/model/position';
 
 import BlockQuoteCommand from './blockquotecommand';
 
@@ -70,10 +68,10 @@ export default class BlockQuoteEditing extends Plugin {
 						return true;
 					} else if ( element.is( 'element' ) ) {
 						// Just added an element. Check its children to see if there are no nested blockQuotes somewhere inside.
-						const range = Range.createIn( element );
+						const range = writer.createRangeIn( element );
 
 						for ( const child of range.getItems() ) {
-							if ( child.is( 'blockQuote' ) && !schema.checkChild( Position.createBefore( child ), child ) ) {
+							if ( child.is( 'blockQuote' ) && !schema.checkChild( writer.createPositionBefore( child ), child ) ) {
 								writer.unwrap( child );
 
 								return true;
diff --git a/tests/blockquoteediting.js b/tests/blockquoteediting.js
index 673a00f..ca7c604 100644
--- a/tests/blockquoteediting.js
+++ b/tests/blockquoteediting.js
@@ -8,8 +8,6 @@ import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
 import ListEditing from '@ckeditor/ckeditor5-list/src/listediting';
 import BoldEditing from '@ckeditor/ckeditor5-basic-styles/src/bold/boldediting';
 
-import Range from '@ckeditor/ckeditor5-engine/src/model/range';
-
 import VirtualTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/virtualtesteditor';
 import { getData as getModelData, setData as setModelData } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
 
@@ -94,7 +92,7 @@ describe( 'BlockQuoteEditing', () => {
 			const root = model.document.getRoot();
 			const bq = root.getChild( 0 );
 
-			writer.remove( Range.createIn( bq ) );
+			writer.remove( writer.createRangeIn( bq ) );
 		} );
 
 		expect( editor.getData() ).to.equal( '<p>&nbsp;</p>' ); // Autoparagraphed.
@@ -122,7 +120,7 @@ describe( 'BlockQuoteEditing', () => {
 		model.change( writer => {
 			const root = model.document.getRoot();
 
-			writer.wrap( Range.createIn( root ), 'blockQuote' );
+			writer.wrap( writer.createRangeIn( root ), 'blockQuote' );
 		} );
 
 		expect( editor.getData() ).to.equal( '<blockquote><p>Foo</p><p>Bar</p></blockquote>' );
@@ -136,7 +134,7 @@ describe( 'BlockQuoteEditing', () => {
 			const root = model.document.getRoot();
 			const p = root.getChild( 0 ).getChild( 0 );
 
-			writer.setAttribute( 'bold', true, Range.createIn( p ) );
+			writer.setAttribute( 'bold', true, writer.createRangeIn( p ) );
 		} );
 
 		expect( editor.getData() ).to.equal( '<blockquote><p><strong>Foo</strong></p></blockquote>' );