diff --git a/Cargo.lock b/Cargo.lock
index d02d5642..27f8aea8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -75,7 +75,7 @@ dependencies = [
 
 [[package]]
 name = "ctutils"
-version = "0.4.0-pre.2"
+version = "0.4.0-pre.3"
 dependencies = [
  "cmov",
  "proptest",
diff --git a/ctutils/Cargo.toml b/ctutils/Cargo.toml
index 18427779..f391807d 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.2"
+version = "0.4.0-pre.3"
 authors = ["RustCrypto Developers"]
 license = "Apache-2.0 OR MIT"
 homepage = "https://github.com/RustCrypto/utils/tree/master/ctselect"
diff --git a/ctutils/src/traits/ct_assign.rs b/ctutils/src/traits/ct_assign.rs
index 0919f685..96f14e62 100644
--- a/ctutils/src/traits/ct_assign.rs
+++ b/ctutils/src/traits/ct_assign.rs
@@ -34,7 +34,7 @@ pub trait CtAssign<Rhs: ?Sized = Self> {
 /// `Self` type implementing the trait, via a blanket impl.
 ///
 /// It needs to be a separate trait from [`CtAssign`] because we need to be able to impl
-/// [`CtAssign`] for `[T]`.
+/// [`CtAssign`] for `[T]` which is `?Sized`.
 pub trait CtAssignSlice: CtAssign + Sized {
     /// Conditionally assign `src` to `dst` if `choice` is [`Choice::TRUE`], or leave it unchanged
     /// for [`Choice::FALSE`].
diff --git a/ctutils/src/traits/ct_eq.rs b/ctutils/src/traits/ct_eq.rs
index 588b41fb..5df56489 100644
--- a/ctutils/src/traits/ct_eq.rs
+++ b/ctutils/src/traits/ct_eq.rs
@@ -45,7 +45,7 @@ where
 /// `Self` type implementing the trait, via a blanket impl.
 ///
 /// It needs to be a separate trait from [`CtEq`] because we need to be able to impl
-/// [`CtEq`] for `[T]`.
+/// [`CtEq`] for `[T]` which is `?Sized`.
 pub trait CtEqSlice: CtEq + Sized {
     /// Determine if `a` is equal to `b` in constant-time.
     #[must_use]