diff --git a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts
index f2ede850c6a..8465c3ceaaf 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts
@@ -7,7 +7,7 @@ import * as assert from 'assert';
 import * as vscode from 'vscode';
 import * as utils from '../utils';
 
-suite.skip('Notebook Editor', function () {
+suite('Notebook Editor', function () {
 
 	const contentSerializer = new class implements vscode.NotebookSerializer {
 		deserializeNotebook() {
@@ -77,7 +77,8 @@ suite.skip('Notebook Editor', function () {
 		assert.strictEqual(editor2.viewColumn, vscode.ViewColumn.Two);
 	});
 
-	test('Opening a notebook should fire activeNotebook event changed only once', async function () {
+	// #138683
+	test.skip('Opening a notebook should fire activeNotebook event changed only once', async function () {
 		const openedEditor = utils.asPromise(vscode.window.onDidChangeActiveNotebookEditor);
 		const resource = await utils.createRandomFile(undefined, undefined, '.nbdtest');
 		const editor = await vscode.window.showNotebookDocument(resource);
diff --git a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
index 425f0db2979..b4c4c7a3e2b 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
@@ -136,7 +136,7 @@ const apiTestContentProvider: vscode.NotebookContentProvider = {
 	}
 };
 
-suite.skip('Notebook API tests', function () {
+suite('Notebook API tests', function () {
 
 	const testDisposables: vscode.Disposable[] = [];
 	const suiteDisposables: vscode.Disposable[] = [];
@@ -872,7 +872,7 @@ suite.skip('Notebook API tests', function () {
 	});
 });
 
-suite.skip('statusbar', () => {
+suite('statusbar', () => {
 	const emitter = new vscode.EventEmitter<vscode.NotebookCell>();
 	const onDidCallProvide = emitter.event;
 	const suiteDisposables: vscode.Disposable[] = [];
@@ -910,7 +910,7 @@ suite.skip('statusbar', () => {
 	});
 });
 
-suite.skip('Notebook API tests (metadata)', function () {
+suite('Notebook API tests (metadata)', function () {
 	const testDisposables: vscode.Disposable[] = [];
 	const suiteDisposables: vscode.Disposable[] = [];