diff --git a/Cargo.toml b/Cargo.toml
index 1ed404a..08ee95d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -70,7 +70,7 @@ features = [
 ]
 
 [target.'cfg(target_os = "redox")'.dependencies]
-redox_syscall = "0.4"
+redox_syscall = "0.5"
 
 [build-dependencies]
 cfg_aliases = "0.2.0"