diff --git a/Cargo.toml b/Cargo.toml
index fb2ad613..2143fdb2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -54,7 +54,7 @@ envy = "0.4.2"
 trybuild = "1.0.71"
 matrixmultiply = "0.3.2"
 rayon = "1.1"
-hostname = "0.3"
+hostname = "0.4"
 nix = "0.23"
 assert_cmd = "2.0.4"
 serial_test = "0.6.0"