diff --git a/js/ckeditor5_plugins/linkit/src/linkitediting.js b/js/ckeditor5_plugins/linkit/src/linkitediting.js
index 1234567..abcdefg 100644
--- a/js/ckeditor5_plugins/linkit/src/linkitediting.js
+++ b/js/ckeditor5_plugins/linkit/src/linkitediting.js
@@ -36,15 +36,22 @@ export default class LinkitEditing extends Plugin {
       });

       // View (DOM/DATA) -> Model
-      editor.conversion.for('upcast')
-        .elementToAttribute({
-          view: {
-            name: 'a',
-            attributes: {
-              [this.attrsView[i]]: true,
-            }
-          },
-          model: {
+      let view = {
+        name: 'a',
+        attributes: {
+          [this.attrsView[i]]: true,
+        }
+      };
+      // Use 'classes' instead of 'attributes' for 'class' to avoid deprecated warning
+      if (this.attrsView[i] === 'class') {
+        view = {
+          name: 'a',
+          classes: true
+        };
+      }
+      editor.conversion.for('upcast').elementToAttribute({
+        view: view,
+        model: {
             key: attribute,
             value: viewElement => viewElement.getAttribute(this.attrsView[i]),
           }