diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e01bc188..a89730053 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+
+## [0.4.2](https://github.com/actonlang/acton/releases/tag/v0.4.2) (2021-08-05)
+
 ### Added
 - `tip` releases are now available at stable URLs:
   - https://github.com/actonlang/acton/releases/download/tip/acton-darwin-x86_64.tar.bz2
diff --git a/common.mk b/common.mk
index 61798827b..7a8ae7c28 100644
--- a/common.mk
+++ b/common.mk
@@ -1 +1 @@
-VERSION=0.4.1
+VERSION=0.4.2