diff --git a/nbgrader/_version.py b/nbgrader/_version.py
index 9081fb0ce..8c817aa0f 100644
--- a/nbgrader/_version.py
+++ b/nbgrader/_version.py
@@ -1,2 +1,2 @@
-version_info = (0, 2, 1, 'dev2')
+version_info = (0, 2, 1)
 __version__ = '.'.join(map(str, version_info))
\ No newline at end of file