diff --git a/Cargo.lock b/Cargo.lock
index f957993..99c4397 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2716,7 +2716,7 @@ checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
 
 [[package]]
 name = "wagi"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "async-stream",
diff --git a/Cargo.toml b/Cargo.toml
index 1d4fec7..e045a70 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name    = "wagi"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Matt Butcher <matt.butcher@microsoft.com>"]
 edition = "2018"
 
diff --git a/docs/installation.md b/docs/installation.md
index 44b8a79..c0b4b15 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -8,7 +8,7 @@ and download the desired release. Usually, the most recent release is the one yo
 You can generate and compare the SHA with `shasum`:
 
 ```console
-$ shasum wagi-v0.3.0-linux-amd64.tar.gz
+$ shasum wagi-v0.4.0-linux-amd64.tar.gz
 ad4114b2ed9e510a8c24348d5ea544da55c685f5  wagi-v0.3.0-linux-amd64.tar.gz
 ```
 
@@ -40,7 +40,7 @@ To build a static binary, run the following command:
 
 ```console
 $ make build
-   Compiling wagi v0.3.0 (/Users/technosophos/Code/Rust/wagi)
+   Compiling wagi v0.4.0 (/Users/technosophos/Code/Rust/wagi)
     Finished release [optimized] target(s) in 18.47s
 ```