diff --git a/common/topology/Cargo.toml b/common/topology/Cargo.toml
index 2fe226e5fc..ab4c52c368 100644
--- a/common/topology/Cargo.toml
+++ b/common/topology/Cargo.toml
@@ -9,6 +9,7 @@ edition = "2018"
 [dependencies]
 base64 = "0.11.0"
 curve25519-dalek = "1.2.3"
+itertools = "0.8.2"
 log = "0.4.8"
 rand = "0.7.2"
 serde = { version = "1.0.104", features = ["derive"] }