diff --git a/pyproject.toml b/pyproject.toml
index 4777cac..50dae4b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pyriodicity"
-version = "0.4.0rc0"
+version = "0.4.0rc1"
 description = "Pyriodicity provides an intuitive and easy-to-use Python implementation for periodicity detection in univariate signals."
 
 license = "MIT"