diff --git a/certomancer/version.py b/certomancer/version.py
index 2c03856..480addb 100644
--- a/certomancer/version.py
+++ b/certomancer/version.py
@@ -1,2 +1,2 @@
-__version__ = '0.12.0'
-__version_info__ = (0, 12, 0)
+__version__ = '0.12.1.dev1'
+__version_info__ = (0, 12, 1, 'dev1')