Fix cargo minimal-versions check

Author: Finomnis

Cargo.toml

@@ -19,7 +19,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 [dependencies]
 hyper = "1.0.0"
 futures-channel = "0.3"
-futures-util = { version = "0.3", default-features = false }
+futures-util = { version = "0.3.16", default-features = false }
 http = "1.0"
 http-body = "1.0.0"
 bytes = "1"
@@ -28,7 +28,7 @@ socket2 = { version = "0.5", optional = true, features = ["all"] }
 tracing = { version = "0.1", default-features = false, features = ["std"] }
 tokio = { version = "1", optional = true, features = ["net", "rt", "time"] }
 tower-service = "0.3"
-tower = { version = "0.4", features = ["make", "util"] }
+tower = { version = "0.4.1", features = ["make", "util"] }
 
 [dev-dependencies]
 hyper = { version = "1.0.0", features = ["full"] }