diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e796cd0..b3a9409f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## master
 
+## 0.4.0
+
 ### BREAKING CHANGES
 
 While the functionality of this library remain compatible with previous release, its public API has
diff --git a/README.md b/README.md
index 60979484..e203bd5b 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ There are more [Examples](./Examples) for the curious.
 #### With [SwiftPM](https://swift.org/package-manager)
 
 ```swift
-.package(url: "http://github.com/dduan/Pathos", from: "1.0")
+.package(url: "http://github.com/dduan/Pathos", from: "0.4.0")
 ```
 
 ## Documentation