diff --git a/crates/crontab_types/Cargo.toml b/crates/crontab_types/Cargo.toml
index 8ec805b..e9e0bf6 100644
--- a/crates/crontab_types/Cargo.toml
+++ b/crates/crontab_types/Cargo.toml
@@ -2,6 +2,7 @@
 name = "archimedes_crontab_types"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 description = "Crontab types package for archimedes, a high performance Rust/PostgreSQL job queue"
 homepage = "docs.rs/archimedes_crontab_types"
 documentation = "docs.rs/archimedes_crontab_types"