diff --git a/pyproject.toml b/pyproject.toml
index e782e08c..884c3ac4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "bayesian-optimization"
-version = "2.0.3"
+version = "3.0.0b1"
 description = "Bayesian Optimization package"
 authors = ["Fernando Nogueira"]
 license = "MIT"