diff --git a/Cargo.lock b/Cargo.lock
index 635a25f1..80307874 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -75,7 +75,7 @@ dependencies = [
 
 [[package]]
 name = "ctutils"
-version = "0.4.0-pre"
+version = "0.4.0-pre.0"
 dependencies = [
  "cmov",
  "proptest",
diff --git a/ctutils/Cargo.toml b/ctutils/Cargo.toml
index cc8a76f3..9814a3a9 100644
--- a/ctutils/Cargo.toml
+++ b/ctutils/Cargo.toml
@@ -5,7 +5,7 @@ Constant-time utility library with selection and equality testing support target
 applications. Supports `const fn` where appropriate. Built on the `cmov` crate which provides
 architecture-specific predication intrinsics. Heavily inspired by the `subtle` crate.
 """
-version = "0.4.0-pre"
+version = "0.4.0-pre.0"
 authors = ["RustCrypto Developers"]
 license = "Apache-2.0 OR MIT"
 homepage = "https://github.com/RustCrypto/utils/tree/master/ctselect"