diff --git a/Cargo.toml b/Cargo.toml
index 93d67ab..c746972 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ readme = "README.md"
 fastrand = "2.3"
 thiserror = "2"
 parking_lot = "0.12"
-tokio = { version = "1", features = ["sync", "rt-multi-thread"], optional = true }
+tokio = { version = "1.30", features = ["sync", "rt-multi-thread"], optional = true }
 optimizer-derive = { version = "0.1.0", path = "optimizer-derive", optional = true }
 serde = { version = "1", features = ["derive"], optional = true }
 serde_json = { version = "1", optional = true }
@@ -40,7 +40,7 @@ cma-es = ["dep:nalgebra"]
 gp = ["dep:nalgebra"]
 
 [dev-dependencies]
-tokio = { version = "1", features = ["rt-multi-thread", "macros", "time"] }
+tokio = { version = "1.30", features = ["rt-multi-thread", "macros", "time"] }
 optimizer-derive = { version = "0.1.0", path = "optimizer-derive" }
 serde_json = "1"
 criterion = { version = "0.8", features = ["html_reports"] }