diff --git a/Cargo.toml b/Cargo.toml
index c0a728c..67c550c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,6 +3,7 @@ name = "russ"
 version = "0.5.0"
 authors = ["Clark Kampfe <clark.kampfe@gmail.com>"]
 edition = "2021"
+license = "AGPL-3.0-or-later"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/README.md b/README.md
index 69594a5..6ac1a9d 100644
--- a/README.md
+++ b/README.md
@@ -208,3 +208,4 @@ I welcome contributions to Russ. If you have an idea for something you would lik
 ## license
 
 See the [license.](LICENSE)
+SPDX-License-Identifier: AGPL-3.0-or-later