diff --git a/setup.cfg b/setup.cfg
index 035f659..66a4098 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -58,7 +58,7 @@ addopts = --doctest-modules
 
 
 [pycalver]
-current_version = v201811.0004-beta
+current_version = v201811.0005-beta
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index b300a6e..2064f11 100644
--- a/setup.py
+++ b/setup.py
@@ -41,7 +41,7 @@ setuptools.setup(
     author="Manuel Barkhau",
     author_email="@mbarkhau",
     url="https://gitlab.com/mbarkhau/pycalver",
-    version="201811.4b0",
+    version="201811.5b0",
 
     keywords="version versioning bumpversion calver",
     description="CalVer versioning for python libraries.",
diff --git a/src/pycalver/__init__.py b/src/pycalver/__init__.py
index 329d917..e6f868c 100644
--- a/src/pycalver/__init__.py
+++ b/src/pycalver/__init__.py
@@ -5,4 +5,4 @@
 # SPDX-License-Identifier: MIT
 """PyCalVer: Automatic CalVer Versioning for Python Packages."""
 
-__version__ = "v201811.0004-beta"
+__version__ = "v201811.0005-beta"