diff --git a/pyproject.toml b/pyproject.toml
index f368f0507..ecc14b968 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "concretefhe"
-version = "0.1.0"
+version = "0.1.0rc1"
 description = "Concrete Framework"
 authors = ["Zama <hello@zama.ai>"]
 packages = [