diff --git a/pygit2/version.py b/pygit2/version.py
index 1155076..4ec5764 100644
--- a/pygit2/version.py
+++ b/pygit2/version.py
@@ -23,4 +23,4 @@
 # the Free Software Foundation, 51 Franklin Street, Fifth Floor,
 # Boston, MA 02110-1301, USA.
 
-__version__ = '0.17.3'
+__version__ = '0.17.4dev'