diff --git a/Cargo.toml b/Cargo.toml
index 2a765b9..15c4893 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,6 @@ strum_macros = "0.24"
 async-mio = ["mio/net", "mio/os-poll"]
 
 [dev-dependencies]
-libc = "0"
 mio = { version = "0.8", features = ["os-poll", "os-ext"] }
 popol = "0.5"
 tempfile = "3"