diff --git a/Cargo.toml b/Cargo.toml
index 8dd058cd17..c4a97af2d4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,4 +18,4 @@ std = []
 [dependencies]
 bitflags = "2"
 libc = "0.2"
-redox_syscall = { version = "0.4", optional = true }
+redox_syscall = { version = "0.5", optional = true }