diff --git a/Cargo.lock b/Cargo.lock
index 5505721d..19fee50a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4002,6 +4002,7 @@ dependencies = [
  "bs58",
  "bytes",
  "chrono",
+ "crossbeam-channel",
  "dashmap",
  "futures",
  "lazy_static",
diff --git a/services/Cargo.toml b/services/Cargo.toml
index c2929427..06afbfe9 100644
--- a/services/Cargo.toml
+++ b/services/Cargo.toml
@@ -38,3 +38,7 @@ rustls = { workspace = true }
 solana-lite-rpc-core = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
+
+[dev-dependencies]
+# note: version 0.5.6 has a known bug
+crossbeam-channel = "0.5.6"