diff --git a/substratools/__version__.py b/substratools/__version__.py
index 6d45cd9..c30ebf9 100644
--- a/substratools/__version__.py
+++ b/substratools/__version__.py
@@ -1 +1 @@
-__version__ = "0.21.0rc1"
+__version__ = "0.21.0rc3"