diff --git a/CHANGES.rst b/CHANGES.rst
index 018d4d3..b1a9f6f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,9 @@
+1.3.11 (unreleased)
+-------------------
+
+- Nothing changed yet.
+
+
 1.3.10 (2024-10-14)
 -------------------
 
diff --git a/version.txt b/version.txt
index 0c00f61..0f46d96 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.3.10
+1.3.11.dev0