diff --git a/Cargo.toml b/Cargo.toml
index f4fbe8c..858f2f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "tinyvec"
 description = "Just, really the littlest Vec you could need. So smol."
-version = "0.4.0"
+version = "0.4.0-alpha.1"
 authors = ["Lokathor <zefria@gmail.com>"]
 edition = "2018"
 license = "Zlib"