diff --git a/CHANGELOG.md b/CHANGELOG.md
index 12308c0d..66c8999d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+### Version 4.0.2
+- Includes another update to libdeflater that improves support for targets
+  without a C stdlib, like wasm32.
+
 ### Version 4.0.1
 - Includes an update to libdeflater that improves support for targets
   without a C stdlib, like wasm32.
diff --git a/Cargo.lock b/Cargo.lock
index 926c0d91..c2ea5fc0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -400,7 +400,7 @@ dependencies = [
 
 [[package]]
 name = "oxipng"
-version = "4.0.1"
+version = "4.0.2"
 dependencies = [
  "bit-vec",
  "byteorder",
diff --git a/Cargo.toml b/Cargo.toml
index 96c1915f..02ca86ea 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ license = "MIT"
 name = "oxipng"
 repository = "https://github.com/shssoichiro/oxipng"
 build = "build.rs"
-version = "4.0.1"
+version = "4.0.2"
 
 [badges]
 travis-ci = { repository = "shssoichiro/oxipng", branch = "master" }