diff --git a/lambda-attributes/Cargo.toml b/lambda-attributes/Cargo.toml
index d0c0e6e7..856c099a 100644
--- a/lambda-attributes/Cargo.toml
+++ b/lambda-attributes/Cargo.toml
@@ -3,6 +3,7 @@ name = "lambda-attributes"
 version = "0.1.0"
 authors = ["David Barsky <dbarsky@amazon.com>"]
 edition = "2018"
+license = "Apache-2.0"
 
 [lib]
 proc-macro = true
diff --git a/lambda/Cargo.toml b/lambda/Cargo.toml
index eb718e80..84ddae3b 100644
--- a/lambda/Cargo.toml
+++ b/lambda/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["David Barsky <dbarsky@amazon.com>"]
 description = "AWS Lambda Runtime."
 edition = "2018"
+license = "Apache-2.0"
 
 [features]
 # no features by default