diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index a953cac0779..82a0202fff3 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -1404,8 +1404,8 @@ declare module 'vscode' {
 	//#region https://github.com/microsoft/vscode/issues/106744, NotebookSerializer
 
 	export interface NotebookSerializer {
-		dataToNotebook(data: Uint8Array): NotebookData | Thenable<NotebookData>;
-		notebookToData(data: NotebookData): Uint8Array | Thenable<Uint8Array>;
+		deserializeNotebook(data: Uint8Array): NotebookData | Thenable<NotebookData>;
+		serializeNotebook(data: NotebookData): Uint8Array | Thenable<Uint8Array>;
 	}
 
 	export namespace notebook {
diff --git a/src/vs/workbench/api/common/extHostNotebook.ts b/src/vs/workbench/api/common/extHostNotebook.ts
index 43c6f6df2c3..36b67ed2e03 100644
--- a/src/vs/workbench/api/common/extHostNotebook.ts
+++ b/src/vs/workbench/api/common/extHostNotebook.ts
@@ -572,7 +572,7 @@ export class ExtHostNotebookController implements ExtHostNotebookShape {
 		if (!serializer) {
 			throw new Error('NO serializer found');
 		}
-		const data = await serializer.dataToNotebook(bytes.buffer);
+		const data = await serializer.deserializeNotebook(bytes.buffer);
 		return {
 			metadata: typeConverters.NotebookDocumentMetadata.from(data.metadata),
 			cells: data.cells.map(typeConverters.NotebookCellData.from),
@@ -584,7 +584,7 @@ export class ExtHostNotebookController implements ExtHostNotebookShape {
 		if (!serializer) {
 			throw new Error('NO serializer found');
 		}
-		const bytes = await serializer.notebookToData({
+		const bytes = await serializer.serializeNotebook({
 			metadata: typeConverters.NotebookDocumentMetadata.to(data.metadata),
 			cells: data.cells.map(typeConverters.NotebookCellData.to)
 		});