diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 62623a9c269f..b0fae1031e48 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3, 0, 0, 'alpha', 0
+current_version = 3, 0, 0, 'alpha', 1
 commit = False
 tag = False
 parse = (?P<major>\d+)\,\ (?P<minor>\d+)\,\ (?P<patch>\d+)\,\ \'(?P<release>\S+)\'\,\ (?P<build>\d+)
diff --git a/dev_mode/package.json b/dev_mode/package.json
index f9d5008a86c7..ceb4fd3a9b0a 100644
--- a/dev_mode/package.json
+++ b/dev_mode/package.json
@@ -193,7 +193,7 @@
   },
   "jupyterlab": {
     "name": "JupyterLab",
-    "version": "3.0.0a0",
+    "version": "3.0.0a1",
     "extensions": {
       "@jupyterlab/application-extension": "",
       "@jupyterlab/apputils-extension": "",
diff --git a/jupyterlab/_version.py b/jupyterlab/_version.py
index 92cd15057348..3ca97def0a0e 100644
--- a/jupyterlab/_version.py
+++ b/jupyterlab/_version.py
@@ -12,7 +12,7 @@
 ])
 
 # DO NOT EDIT THIS DIRECTLY!  It is managed by bumpversion
-version_info = VersionInfo(3, 0, 0, 'alpha', 0)
+version_info = VersionInfo(3, 0, 0, 'alpha', 1)
 
 _specifier_ = {'alpha': 'a', 'beta': 'b', 'candidate': 'rc', 'final': ''}