diff --git a/backend/common/Cargo.toml b/backend/common/Cargo.toml
index 391cbbd..4647890 100644
--- a/backend/common/Cargo.toml
+++ b/backend/common/Cargo.toml
@@ -3,6 +3,7 @@ name = "common"
 version = "0.1.0"
 authors = ["Parity Technologies Ltd. <admin@parity.io>"]
 edition = "2018"
+license = "GPL-3.0"
 
 [dependencies]
 bimap = "0.6.1"
diff --git a/backend/shard/Cargo.toml b/backend/shard/Cargo.toml
index 8335e93..e3a64db 100644
--- a/backend/shard/Cargo.toml
+++ b/backend/shard/Cargo.toml
@@ -3,6 +3,7 @@ name = "shard"
 version = "0.1.0"
 authors = ["Parity Technologies Ltd. <admin@parity.io>"]
 edition = "2018"
+license = "GPL-3.0"
 
 [dependencies]
 anyhow = "1.0.41"