diff --git a/CHANGELOG.md b/CHANGELOG.md
index 84c7aec..28be76e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Syntax Highlighter Change Log
 
+## **Version 0.3.1**
+#### Changes:
+* Demo of {Syntax Highlighter} in README.md
+* C++: `noexcept` keyword is highlighted
+* C++: definition of operator (e.g. `operator!()`) is highlighted
+* C++: `default` is highlighted as *modifier* instead of *control*
+
+
 ## **Version 0.3.0**
 #### New programming languages:
 * Ruby
diff --git a/package-lock.json b/package-lock.json
index b6c2857..b5e567b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
 	"name": "syntax-highlighter",
-	"version": "0.3.0",
+	"version": "0.3.1",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {
diff --git a/package.json b/package.json
index 4370c2c..75e9bf9 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
 	"displayName": "Syntax Highlighter",
 	"description": "Syntax highlighting based on Tree-sitter",
 	"homepage": "https://github.com/EvgeniyPeshkov/syntax-highlighter",
-	"version": "0.3.0",
+	"version": "0.3.1",
 	"publisher": "evgeniypeshkov",
 	"license": "MIT",
 	"icon": "images/syntax.png",