diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53e06166..ba5e3995 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## v4.0.6
+**Wollok Version: `3.1.9`**
+
+- New Formatter / Printer.
+- Validate concrete class on instantiation.
+- Validate uninitialized consts.
+
 ## v4.0.5
 **Wollok Version: `3.1.9`**
 
diff --git a/package.json b/package.json
index bc0ecbea..c06bc5c6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wollok-ts",
-  "version": "4.0.6",
+  "version": "4.0.7",
   "wollokVersion": "3.1.9",
   "description": "TypeScript based Wollok language implementation",
   "repository": "https://github.com/uqbar-project/wollok-ts",