diff --git a/setup.cfg b/setup.cfg
index 31a87545..fe652ee0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,7 +23,7 @@ max-line-length = 119
 [versioneer]
 # Automatic version numbering scheme
 VCS = git
-style = pep440
+style = pep440-pre
 versionfile_source = transformato/_version.py
 versionfile_build = transformato/_version.py
 tag_prefix = ''