diff --git a/Cargo.toml b/Cargo.toml
index 90b108c..238780f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,10 +3,10 @@ name = "printf-compat"
 description = "printf reimplemented in Rust"
 version = "0.3.0"
 repository = "https://github.com/lights0123/printf-compat"
-authors = ["lights0123 <developer@lights0123.com>"]
 edition = "2024"
 license = "MIT OR Apache-2.0"
 readme = "README.md"
+categories = ["development-tools::ffi", "embedded", "no-std", "no-std::no-alloc"]
 
 [dependencies]
 bitflags = "2.9.1"