diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 23a32a151ea..7667399f297 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,9 +1,9 @@
 [bumpversion]
-current_version = 4.4.7
+current_version = 5.0.0-alpha1
 commit = True
 tag = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(?P<releaselevel>[a-z\d]+)?
-serialize =
+serialize = 
 	{major}.{minor}.{patch}{releaselevel}
 	{major}.{minor}.{patch}
 
@@ -12,4 +12,3 @@ serialize =
 [bumpversion:file:docs/includes/introduction.txt]
 
 [bumpversion:file:README.rst]
-
diff --git a/README.rst b/README.rst
index 481180256c7..b41eff7a060 100644
--- a/README.rst
+++ b/README.rst
@@ -2,7 +2,7 @@
 
 |build-status| |coverage| |license| |wheel| |pyversion| |pyimp| |ocbackerbadge| |ocsponsorbadge|
 
-:Version: 4.4.7 (cliffs)
+:Version: 5.0.0 (cliffs)
 :Web: http://celeryproject.org/
 :Download: https://pypi.org/project/celery/
 :Source: https://github.com/celery/celery/
diff --git a/celery/__init__.py b/celery/__init__.py
index ab4d10632eb..f0b0d93f251 100644
--- a/celery/__init__.py
+++ b/celery/__init__.py
@@ -17,7 +17,7 @@
 
 SERIES = 'cliffs'
 
-__version__ = '4.4.7'
+__version__ = '5.0.0'
 __author__ = 'Ask Solem'
 __contact__ = 'auvipy@gmail.com'
 __homepage__ = 'http://celeryproject.org'
diff --git a/docs/includes/introduction.txt b/docs/includes/introduction.txt
index 76c0e7a33a0..0ba1f965b3f 100644
--- a/docs/includes/introduction.txt
+++ b/docs/includes/introduction.txt
@@ -1,4 +1,4 @@
-:Version: 4.4.7 (cliffs)
+:Version: 5.0.0 (cliffs)
 :Web: http://celeryproject.org/
 :Download: https://pypi.org/project/celery/
 :Source: https://github.com/celery/celery/