diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 61481d05..5d65f878 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -2,6 +2,7 @@
 name = "tergo"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 [dependencies]
 clap = { version = "4.5.17", features = ["derive"] }
diff --git a/formatter/Cargo.toml b/formatter/Cargo.toml
index 7f746148..098a60d4 100644
--- a/formatter/Cargo.toml
+++ b/formatter/Cargo.toml
@@ -2,6 +2,7 @@
 name = "tergo-formatter"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/parser/Cargo.toml b/parser/Cargo.toml
index 6409d95e..08847624 100644
--- a/parser/Cargo.toml
+++ b/parser/Cargo.toml
@@ -2,6 +2,7 @@
 name = "tergo-parser"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/tokenizer/Cargo.toml b/tokenizer/Cargo.toml
index 27e1d1a1..d1eb0bf4 100644
--- a/tokenizer/Cargo.toml
+++ b/tokenizer/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 edition = "2021"
 authors = ["Konrad Pagacz konrad.pagacz@gmail.com"]
 description = "R language tokenizer"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html