diff --git a/CHANGES.rst b/CHANGES.rst
index 2c0fb39..fb3f8be 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changelog of hydxlib
 ===================================================
 
+1.5.4 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 1.5.3 (2024-11-11)
 ------------------
 
diff --git a/hydxlib/__init__.py b/hydxlib/__init__.py
index 2f9a661..ecdfa20 100644
--- a/hydxlib/__init__.py
+++ b/hydxlib/__init__.py
@@ -1,3 +1,3 @@
 # fmt: off
-__version__ = '1.5.3'
+__version__ = '1.5.4.dev0'
 # fmt: on