diff --git a/Cargo.toml b/Cargo.toml
index 4716d6b..b4ca9c7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,7 +41,7 @@ rand = { version = "^0.8", features = ["std", "std_rng"], optional = true }
 # version_sync: to ensure versions in `Cargo.toml` and `README.md` are in sync
 version-sync = "0.9.4"
 rand = { version = "0.8.5", features = ["getrandom"] }
-tokio = { version = "=1.38.1", features = ["full"] }
+tokio = { version = "=1.39.3", features = ["full"] }
 bloomfilter = "^1.0"
 ethabi = "^18.0"