diff --git a/CHANGES.rst b/CHANGES.rst
index 1656678..9eefaad 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,9 @@
+1.6 (unreleased)
+----------------
+
+- Nothing changed yet.
+
+
 1.5 (2023-08-11)
 ----------------
 
diff --git a/setup.cfg b/setup.cfg
index 433d072..0bb0795 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = unoserver
-version = 1.5
+version = 1.6.dev0
 description = A server for file conversions with Libre Office
 long_description = file: README.rst, CONTRIBUTORS.rst, CHANGES.rst
 classifiers =