diff --git a/mdevaluate/__init__.py b/mdevaluate/__init__.py
index 24d3dd9..c45a209 100644
--- a/mdevaluate/__init__.py
+++ b/mdevaluate/__init__.py
@@ -11,7 +11,7 @@ from . import autosave
 from . import reader
 from .logging import logger
 
-__version__ = '22.5'
+__version__ = '22.6.dev1'
 
 
 def open(directory='', topology='*.tpr', trajectory='*.xtc', cached=False,
diff --git a/setup.py b/setup.py
index 397ef5a..fa80845 100644
--- a/setup.py
+++ b/setup.py
@@ -22,6 +22,6 @@ setup(
             'index-xtc = mdevaluate.cli:run'
         ]
     },
-    version='22.5',
+    version='22.6.dev1',
     requires=['numpy', 'scipy'],
 )