diff --git a/pkgs/by-name/sy/systemfd/package.nix b/pkgs/by-name/sy/systemfd/package.nix
index 6c4e59cca313..4751cf78b6b5 100644
--- a/pkgs/by-name/sy/systemfd/package.nix
+++ b/pkgs/by-name/sy/systemfd/package.nix
@@ -5,7 +5,7 @@
 }:
 
 let
-  version = "0.4.4";
+  version = "0.4.6";
 
 in
 rustPlatform.buildRustPackage {
@@ -17,10 +17,10 @@ rustPlatform.buildRustPackage {
     repo = "systemfd";
     owner = "mitsuhiko";
     rev = version;
-    sha256 = "sha256-U+pBKuoMhyIOhLl1nzmxk5yFt9nOq/KZ6rx9JhalLmM=";
+    sha256 = "sha256-OUsQBHymoiLClRS45KE4zsyOh/Df8psP0t8aIkKNZsM=";
   };
 
-  cargoHash = "sha256-k8FgdNVjFYO/lflVzRQUwHvdy4+eCNTnTYImdfy1GaQ=";
+  cargoHash = "sha256-4lgl/oZwxRLO88VHaHlu5/gRR9iOCIkYzRYaw5xWKGg=";
 
   meta = {
     description = "Convenient helper for passing sockets into another process";