diff --git a/Cargo.toml b/Cargo.toml
index d269ed1..4f6c1e6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 authors = ["Vinzent Steinberg <Vinzent.Steinberg@gmail.com>"]
 name = "average"
-version = "0.3.0"
+version = "0.4.0"
 license = "MIT/Apache-2.0"
 repository = "https://github.com/vks/average"
 description = "Calculate the average of a sequence and its error iteratively"