diff --git a/dockerspawner/_version.py b/dockerspawner/_version.py
index d449722..b5c4614 100644
--- a/dockerspawner/_version.py
+++ b/dockerspawner/_version.py
@@ -1,7 +1,7 @@
 # __version__ should be updated using tbump, based on configuration in
 # pyproject.toml, according to instructions in RELEASE.md.
 #
-__version__ = "12.2.0.dev"
+__version__ = "13.0.0"
 
 # version_info looks like (1, 2, 3, "dev") if __version__ is 1.2.3.dev
 version_info = tuple(int(p) if p.isdigit() else p for p in __version__.split("."))
diff --git a/pyproject.toml b/pyproject.toml
index efed110..9e4e7cd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,7 @@ markers = [
 github_url = "https://github.com/jupyterhub/dockerspawner"
 
 [tool.tbump.version]
-current = "12.2.0.dev"
+current = "13.0.0"
 regex = '''
     (?P<major>\d+)
     \.
diff --git a/setup.py b/setup.py
index 655b639..e469346 100644
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,7 @@ def run(self):
 setup_args = dict(
     name='dockerspawner',
     packages=['dockerspawner'],
-    version="12.2.0.dev",
+    version="13.0.0",
     description="""Dockerspawner: A custom spawner for Jupyterhub.""",
     long_description="Spawn single-user servers with Docker.",
     author="Jupyter Development Team",