diff --git a/pyproject.toml b/pyproject.toml
index 92d90c1..02ade28 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "gimmegit"
-version = "0.4.0"
+version = "0.5.0.dev0"
 description = "A tool for cloning GitHub repos and creating branches."
 authors = [
     { name = "Dave Wilding", email = "tech@dpw.me" },
diff --git a/src/gimmegit/_version.py b/src/gimmegit/_version.py
index 6a9beea..8a640e5 100644
--- a/src/gimmegit/_version.py
+++ b/src/gimmegit/_version.py
@@ -1 +1 @@
-__version__ = "0.4.0"
+__version__ = "0.5.0.dev0"
diff --git a/uv.lock b/uv.lock
index 0b8653d..5b23d79 100644
--- a/uv.lock
+++ b/uv.lock
@@ -195,7 +195,7 @@ wheels = [
 
 [[package]]
 name = "gimmegit"
-version = "0.4.0"
+version = "0.5.0.dev0"
 source = { editable = "." }
 dependencies = [
     { name = "gitpython" },