diff --git a/pyproject.toml b/pyproject.toml
index 0f12d13..2b46a58 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "agct"
-version = "0.2.0"
+version = "0.2.0rc1"
 authors = [
     {name = "James Stevenson"},
     {name = "Kori Kuzma"},