diff --git a/README.md b/README.md
index cdeabf8..4fb1afc 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # sv-parser
-Parser library for System Verilog ([IEEE1800-2017](https://standards.ieee.org/standard/1800-2017.html)).
+Parser library for SystemVerilog ([IEEE 1800-2017](https://standards.ieee.org/standard/1800-2017.html)).
 
 [![Actions Status](https://github.com/dalance/sv-parser/workflows/Rust/badge.svg)](https://github.com/dalance/sv-parser/actions)
 [![Crates.io](https://img.shields.io/crates/v/sv-parser.svg)](https://crates.io/crates/sv-parser)
diff --git a/sv-parser-error/Cargo.toml b/sv-parser-error/Cargo.toml
index 354f8ac..f700692 100644
--- a/sv-parser-error/Cargo.toml
+++ b/sv-parser-error/Cargo.toml
@@ -1,10 +1,14 @@
 [package]
 name = "sv-parser-error"
 version = "0.1.0"
-authors = ["dalance <dalance@gmail.com>"]
+authors = ["dalance@gmail.com"]
+repository = "https://github.com/dalance/sv-parser"
+keywords = ["parser", "verilog", "systemverilog"]
+categories = ["parsing"]
+license = "MIT OR Apache-2.0"
+readme = "../README.md"
+description = "Helper crate of sv-parser"
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
 failure = "0.1.5"
diff --git a/sv-parser-macros/Cargo.toml b/sv-parser-macros/Cargo.toml
index a62da77..f947fc4 100644
--- a/sv-parser-macros/Cargo.toml
+++ b/sv-parser-macros/Cargo.toml
@@ -1,7 +1,13 @@
 [package]
 name = "sv-parser-macros"
 version = "0.1.0"
-authors = ["dalance <dalance@gmail.com>"]
+authors = ["dalance@gmail.com"]
+repository = "https://github.com/dalance/sv-parser"
+keywords = ["parser", "verilog", "systemverilog"]
+categories = ["parsing"]
+license = "MIT OR Apache-2.0"
+readme = "../README.md"
+description = "Helper crate of sv-parser"
 edition = "2018"
 
 [lib]
diff --git a/sv-parser-parser/Cargo.toml b/sv-parser-parser/Cargo.toml
index 5f30560..ee527b9 100644
--- a/sv-parser-parser/Cargo.toml
+++ b/sv-parser-parser/Cargo.toml
@@ -1,7 +1,13 @@
 [package]
 name = "sv-parser-parser"
 version = "0.1.0"
-authors = ["dalance <dalance@gmail.com>"]
+authors = ["dalance@gmail.com"]
+repository = "https://github.com/dalance/sv-parser"
+keywords = ["parser", "verilog", "systemverilog"]
+categories = ["parsing"]
+license = "MIT OR Apache-2.0"
+readme = "../README.md"
+description = "Helper crate of sv-parser"
 edition = "2018"
 
 [features]
diff --git a/sv-parser-pp/Cargo.toml b/sv-parser-pp/Cargo.toml
index 2639574..f5bb31a 100644
--- a/sv-parser-pp/Cargo.toml
+++ b/sv-parser-pp/Cargo.toml
@@ -1,7 +1,13 @@
 [package]
 name = "sv-parser-pp"
 version = "0.1.0"
-authors = ["dalance <dalance@gmail.com>"]
+authors = ["dalance@gmail.com"]
+repository = "https://github.com/dalance/sv-parser"
+keywords = ["parser", "verilog", "systemverilog"]
+categories = ["parsing"]
+license = "MIT OR Apache-2.0"
+readme = "../README.md"
+description = "Helper crate of sv-parser"
 edition = "2018"
 
 [features]
diff --git a/sv-parser-syntaxtree/Cargo.toml b/sv-parser-syntaxtree/Cargo.toml
index 7781f6b..0410de9 100644
--- a/sv-parser-syntaxtree/Cargo.toml
+++ b/sv-parser-syntaxtree/Cargo.toml
@@ -1,7 +1,13 @@
 [package]
 name = "sv-parser-syntaxtree"
 version = "0.1.0"
-authors = ["dalance <dalance@gmail.com>"]
+authors = ["dalance@gmail.com"]
+repository = "https://github.com/dalance/sv-parser"
+keywords = ["parser", "verilog", "systemverilog"]
+categories = ["parsing"]
+license = "MIT OR Apache-2.0"
+readme = "../README.md"
+description = "Helper crate of sv-parser"
 edition = "2018"
 build = "build.rs"
 
diff --git a/sv-parser/Cargo.toml b/sv-parser/Cargo.toml
index 493e84b..9408ed0 100644
--- a/sv-parser/Cargo.toml
+++ b/sv-parser/Cargo.toml
@@ -3,11 +3,11 @@ name = "sv-parser"
 version = "0.1.0"
 authors = ["dalance@gmail.com"]
 repository = "https://github.com/dalance/sv-parser"
-keywords = []
-categories = []
-license = "MIT"
+keywords = ["parser", "verilog", "systemverilog"]
+categories = ["parsing"]
+license = "MIT OR Apache-2.0"
 readme = "../README.md"
-description = ""
+description = "Parser library for SystemVerilog"
 edition = "2018"
 
 [features]
@@ -22,4 +22,4 @@ sv-parser-pp         = { path = "../sv-parser-pp" }
 sv-parser-syntaxtree = { path = "../sv-parser-syntaxtree" }
 
 [dev-dependencies]
-structopt = "*"
+structopt = "0.3.2"