diff --git a/setup.py b/setup.py
index dfa247c07..f309dccaa 100644
--- a/setup.py
+++ b/setup.py
@@ -45,7 +45,7 @@ def run_tests(self):
     # Versions should comply with PEP440.  For a discussion on single-sourcing
     # the version across setup.py and the project code, see
     # https://packaging.python.org/en/latest/single_source_version.html
-    version='2.0.dev0',
+    version='2.1',
 
     description='An image processing package for plant phenotyping.',
     long_description=long_description,