diff --git a/Cargo.toml b/Cargo.toml
index 06592ba..7ec640f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ tokio = { version = "1", 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 }
-tracing = { version = "0.1", optional = true }
+tracing = { version = "0.1.29", optional = true }
 sobol_burley = { version = "0.5", optional = true }
 nalgebra = { version = "0.33", optional = true }