diff --git a/pyerrors/version.py b/pyerrors/version.py
index e835b9d0..0d8c75f0 100644
--- a/pyerrors/version.py
+++ b/pyerrors/version.py
@@ -1 +1 @@
-__version__ = "2.1.3"
+__version__ = "2.2.0+dev"
diff --git a/setup.py b/setup.py
index db07c7f1..ca4f785d 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@ this_directory = Path(__file__).parent
 long_description = (this_directory / "README.md").read_text()
 
 setup(name='pyerrors',
-      version='2.1.3',
+      version='2.2.0+dev',
       description='Error analysis for lattice QCD',
       long_description=long_description,
       long_description_content_type='text/markdown',