diff --git a/chain/client/Cargo.toml b/chain/client/Cargo.toml
index 80e6920a..5f26a704 100644
--- a/chain/client/Cargo.toml
+++ b/chain/client/Cargo.toml
@@ -5,3 +5,7 @@ authors = ["Judd <kepzorz@gmail.com>"]
 edition = "2018"
 
 [dependencies]
+bitcoin = "0.21.0"
+
+[dev-dependencies]
+bitcoincore-rpc = "0.7.0"