diff --git a/package.json b/package.json
index d7fb206a..2bed7bff 100644
--- a/package.json
+++ b/package.json
@@ -39,15 +39,15 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^1.1.0-alpha.1",
-    "@jupyterlab/apputils": "^1.1.0-alpha.1",
-    "@jupyterlab/codeeditor": "^1.1.0-alpha.1",
-    "@jupyterlab/console": "^1.1.0-alpha.1",
-    "@jupyterlab/coreutils": "^3.1.0-alpha.1",
-    "@jupyterlab/fileeditor": "^1.1.0-alpha.1",
-    "@jupyterlab/launcher": "^1.1.0-alpha.1",
-    "@jupyterlab/notebook": "^1.1.0-alpha.1",
-    "@jupyterlab/services": "^4.1.0-alpha.1",
+    "@jupyterlab/application": "^1.1.0",
+    "@jupyterlab/apputils": "^1.1.0",
+    "@jupyterlab/codeeditor": "^1.1.0",
+    "@jupyterlab/console": "^1.1.0",
+    "@jupyterlab/coreutils": "^3.1.0",
+    "@jupyterlab/fileeditor": "^1.1.0",
+    "@jupyterlab/launcher": "^1.1.0",
+    "@jupyterlab/notebook": "^1.1.0",
+    "@jupyterlab/services": "^4.1.0",
     "@phosphor/algorithm": "^1.2.0",
     "@phosphor/coreutils": "^1.3.1",
     "@phosphor/disposable": "^1.2.0",
@@ -57,7 +57,7 @@
   "devDependencies": {
     "@babel/core": "^7.5.5",
     "@babel/preset-env": "^7.5.5",
-    "@jupyterlab/testutils": "^1.1.0-alpha.1",
+    "@jupyterlab/testutils": "^1.1.0",
     "@types/chai": "^4.1.3",
     "@types/jest": "^24.0.17",
     "chai": "^4.2.0",
diff --git a/tests/run-test.py b/tests/run-test.py
index 6458da47..46e4bdf2 100644
--- a/tests/run-test.py
+++ b/tests/run-test.py
@@ -1,36 +1,30 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
-import json
 import os
-from os.path import join as pjoin
 
-from jupyter_core import paths
-from jupyterlab.tests.test_app import run_jest, JestApp
+from jupyterlab.tests.test_app import JestApp
 
 HERE = os.path.realpath(os.path.dirname(__file__))
 
 
-def _install_xpython_kernel():
-    # Mimics: https://github.com/jupyterlab/jupyterlab/blob/cd2fb6ac3ecfae2bb4bcab84797932e625e9bb2f/jupyterlab/tests/test_app.py#L80-L95
-    kernel_json = {
-        'argv': [
-            'xpython',
-            '-f', '{connection_file}'
-        ],
-        'display_name': "xpython",
-        'language': 'python'
-    }
-    kernel_dir = pjoin(paths.jupyter_data_dir(), 'kernels', 'xpython')
-    os.makedirs(kernel_dir)
-    with open(pjoin(kernel_dir, 'kernel.json'), 'w') as f:
-        f.write(json.dumps(kernel_json))
-
-
-if __name__ == '__main__':
+def run(jest_dir):
     jest_app = JestApp.instance()
+    jest_app.jest_dir = jest_dir
+    jest_app.initialize()
+    jest_app.install_kernel(
+        kernel_name='xpython',
+        kernel_spec={
+            'argv': [
+                'xpython',
+                '-f', '{connection_file}'
+            ],
+            'display_name': 'xpython',
+            'language': 'python'
+        }
+    )
+    jest_app.start()
 
-    # install the kernel spec for xeus-python
-    _install_xpython_kernel()
 
-    run_jest(HERE)
+if __name__ == '__main__':
+    run(HERE)