diff --git a/packages/labextension/jupyterlab-jupytext-0.19.0.tgz b/packages/labextension/jupyterlab-jupytext-0.19.0.tgz
deleted file mode 100644
index 16ccf217f..000000000
Binary files a/packages/labextension/jupyterlab-jupytext-0.19.0.tgz and /dev/null differ
diff --git a/packages/labextension/jupyterlab-jupytext-0.2.0.tgz b/packages/labextension/jupyterlab-jupytext-0.2.0.tgz
deleted file mode 100644
index 4e5642797..000000000
Binary files a/packages/labextension/jupyterlab-jupytext-0.2.0.tgz and /dev/null differ
diff --git a/packages/labextension/jupyterlab-jupytext-1.0.0.tgz b/packages/labextension/jupyterlab-jupytext-1.0.0.tgz
new file mode 100644
index 000000000..7ed1b3bb2
Binary files /dev/null and b/packages/labextension/jupyterlab-jupytext-1.0.0.tgz differ
diff --git a/packages/labextension/package.json b/packages/labextension/package.json
index d5150d01d..99202404a 100644
--- a/packages/labextension/package.json
+++ b/packages/labextension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jupyterlab-jupytext",
-  "version": "0.19.0",
+  "version": "1.0.0",
   "description": "A JupyterLab extension for Jupytext",
   "keywords": [
     "jupyter",
@@ -31,9 +31,9 @@
     "watch": "tsc -w"
   },
   "dependencies": {
-    "@jupyterlab/application": "^0.19",
-    "@jupyterlab/apputils": "^0.19",
-    "@jupyterlab/notebook": "^0.19"
+    "@jupyterlab/application": "^1.0",
+    "@jupyterlab/apputils": "^1.0",
+    "@jupyterlab/notebook": "^1.0"
   },
   "devDependencies": {
     "rimraf": "^2.6.1",
diff --git a/setup.py b/setup.py
index acef786be..2ef41e8b6 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
                                                          'jupytext/nbextension/jupytext_menu.png',
                                                          'jupytext/nbextension/jupytext_menu_zoom.png',
                                                          'jupytext/nbextension/jupytext.yml']),
-                ('share/jupyter/lab/extensions', ['packages/labextension/jupyterlab-jupytext-0.19.0.tgz'])],
+                ('share/jupyter/lab/extensions', ['packages/labextension/jupyterlab-jupytext-1.0.0.tgz'])],
     entry_points={'console_scripts': ['jupytext = jupytext.cli:jupytext_cli']},
     tests_require=['pytest'],
     install_requires=['nbformat>=4.0.0', 'mock', 'pyyaml', 'testfixtures'],