diff --git a/Cargo.toml b/Cargo.toml
index 55a9d38..6c50f19 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 edition = "2021"
 name = "dyn-fmt"
-version = "0.4.1"
+version = "0.4.2"
 rust-version = "1.71"
 authors = ["warlock <internalmike@gmail.com>"]
 description = "Provides dynamic string format."
@@ -14,4 +14,8 @@ repository = "https://github.com/A1-Triard/dyn-fmt"
 
 [features]
 default = ["std"]
+## disable to make the library `#![no_std]`.
 std = []
+
+[dependencies]
+document-features = "0.2.7"
diff --git a/src/lib.rs b/src/lib.rs
index d93008d..3cc1644 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,10 +7,8 @@
 //! | [`format_args!`](std::format_args) | [`Arguments::new`](Arguments::new) |
 //! |       [`write!`](std::write)       |      [`dyn_write!`](dyn_write)     |
 //!
-//! **Crate features**
-//!
-//! * `"std"`
-//!   Enabled by default. Disable to make the library `#![no_std]`.
+//! ## Feature flags
+#![doc=document_features::document_features!()]
 
 #[cfg(feature = "std")]
 extern crate core;