diff --git a/Cargo.toml b/Cargo.toml
index f21a5788..98c3cf1b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,8 +30,8 @@ libc = { version = "0.2", optional = true }
 percent-encoding = { version = "2.3", optional = true }
 pin-project-lite = "0.2.4"
 socket2 = { version = "0.6", optional = true, features = ["all"] }
-tracing = { version = "0.1", default-features = false, features = ["std"], optional = true }
-tokio = { version = "1", optional = true, default-features = false  }
+tracing = { version = "0.1.36", default-features = false, features = ["std"], optional = true }
+tokio = { version = "1.13", optional = true, default-features = false  }
 tower-layer = { version = "0.3", optional = true }
 tower-service = { version = "0.3", optional = true }