diff --git a/pyproject.toml b/pyproject.toml
index 24d1075969..e5a7befa11 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ build-backend = 'maturin'
 name = "sourmash"
 description = "tools for comparing biological sequences with k-mer sketches"
 readme = "README.md"
-version = "4.6.1"
+version = "4.7.0rc2"
 
 authors = [
   { name="Luiz Irber", orcid="0000-0003-4371-9659" },