diff --git a/Cargo.toml b/Cargo.toml
index a91fa37f..b85b3a26 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 name = "imap-flow"
 version = "0.1.0"
 edition = "2021"
+license = "MIT OR Apache-2.0"
 
 [dependencies]
 bounded-static = "0.5.0"
diff --git a/deny.toml b/deny.toml
new file mode 100644
index 00000000..e0e32634
--- /dev/null
+++ b/deny.toml
@@ -0,0 +1,6 @@
+[sources]
+unknown-registry = "deny"
+unknown-git      = "deny"
+
+[licenses]
+allow = [ "Apache-2.0", "MIT", "Unicode-DFS-2016" ]