diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5db860a..a26ecb6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# Version 4.0.5 : Fuzzing
+New test and fuzzing yay
+
 # Version 4.0.4 : Restructuration
 Hey!
 The code is now structured as follow:
diff --git a/Cargo.toml b/Cargo.toml
index 4b08360..dfad88c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ resolver = "2"
 members = ["crates/mini-calc", "crates/mini-calc-lib"]
 
 [workspace.package]
-version = "4.0.4"
+version = "4.0.5-alpha"
 license = "GPL-3.0-or-later"
 description = "A Fully-Featured Configurable (mini) Rust Calculator"
 homepage = "https://calc.charlotte-thomas.me"
diff --git a/crates/mini-calc-lib/src/lib.rs b/crates/mini-calc-lib/src/lib.rs
index dbf59a9..0ccb965 100644
--- a/crates/mini-calc-lib/src/lib.rs
+++ b/crates/mini-calc-lib/src/lib.rs
@@ -8,5 +8,5 @@ pub mod functions;
 pub mod lexing;
 pub mod parsing;
 pub mod utils;
-pub static VERSION: &str = "v4.0.4";
+pub static VERSION: &str = "v4.0.5-alpha";
 thread_local! {pub static FLOAT_MODE: RefCell<FloatMode> = const {RefCell::new(FloatMode::Exact)}}