diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index feec15f7..dae5bcd3 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,11 @@
 Toolium Changelog
 =================
 
+v3.1.3
+------
+
+*Release date: In development*
+
 v3.1.2
 ------
 
diff --git a/VERSION b/VERSION
index ef538c28..263a6468 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.1.2
+3.1.3.dev0