diff --git a/csv_metadata_quality/version.py b/csv_metadata_quality/version.py
index d8c2ae2..297b8c6 100644
--- a/csv_metadata_quality/version.py
+++ b/csv_metadata_quality/version.py
@@ -1,3 +1,3 @@
 # SPDX-License-Identifier: GPL-3.0-only
 
-VERSION = "0.5.0"
+VERSION = "0.6.0-dev"
diff --git a/pyproject.toml b/pyproject.toml
index acbfb27..7437e91 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "csv-metadata-quality"
-version = "0.5.0"
+version = "0.6.0-dev"
 description="A simple, but opinionated CSV quality checking and fixing pipeline for CSVs in the DSpace ecosystem."
 authors = ["Alan Orth <alan.orth@gmail.com>"]
 license="GPL-3.0-only"
diff --git a/setup.py b/setup.py
index 5a5c8e8..76720fc 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@ install_requires = [
 
 setuptools.setup(
     name="csv-metadata-quality",
-    version="0.5.0",
+    version="0.6.0-dev",
     author="Alan Orth",
     author_email="aorth@mjanja.ch",
     description="A simple, but opinionated CSV quality checking and fixing pipeline for CSVs in the DSpace ecosystem.",