diff --git a/Cargo.lock b/Cargo.lock
index e130193..2140927 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -354,7 +354,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "ureq"
-version = "0.3.3"
+version = "0.4.0"
 dependencies = [
  "ascii 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 84bd733..d33e31f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ureq"
-version = "0.3.3"
+version = "0.4.0"
 authors = ["Martin Algesten <martin@algesten.se>"]
 description = "Minimal HTTP request library"
 license = "MIT/Apache-2.0"