diff --git a/CHANGELOG.md b/CHANGELOG.md
index 433c1f4..52e43d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.4.0 - 2024-09-05
+* [#76](https://github.com/brandur/redis-cell/pull/76) Upgrade dependencies
+* [#77](https://github.com/brandur/redis-cell/pull/77) Include `Cargo.lock`
+
 ## 0.3.1 - 2023-06-02
 * [#66](https://github.com/brandur/redis-cell/pull/66) Publish to ARM64 for Linux
 
diff --git a/Cargo.lock b/Cargo.lock
index 03328bc..65f192b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -70,7 +70,7 @@ dependencies = [
 
 [[package]]
 name = "redis-cell"
-version = "0.3.1"
+version = "0.4.0"
 dependencies = [
  "bitflags",
  "cc",
diff --git a/Cargo.toml b/Cargo.toml
index ee1070d..27953ef 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "redis-cell"
-version = "0.3.1"
+version = "0.4.0"
 authors = ["Brandur <brandur@mutelight.org>"]
 build = "build.rs"
 description = "A Redis module that provides rate limiting in Redis as a single command."