diff --git a/Cargo.lock b/Cargo.lock
index de0b337..0be2afe 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -427,7 +427,7 @@ checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"
 
 [[package]]
 name = "zeroize"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "libc",
  "libsodium-sys",
diff --git a/Cargo.toml b/Cargo.toml
index 7871990..55987ad 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "zeroize"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html