diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3461189..4c82af1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.5.0]
+
 ### Added
 
 - Builtin documentation for builtin functions display from repl and command line (`musique doc <builtin>`)
diff --git a/config.mk b/config.mk
index 99420ee..069e673 100644
--- a/config.mk
+++ b/config.mk
@@ -1,6 +1,6 @@
 MAKEFLAGS="-j $(grep -c ^processor /proc/cpuinfo)"
 
-MAJOR := 4
+MAJOR := 5
 MINOR := 0
 PATCH := 0
 COMMIT := gc$(shell git rev-parse --short HEAD 2>/dev/null)