diff --git a/pkgs/os-specific/linux/hd-idle/default.nix b/pkgs/os-specific/linux/hd-idle/default.nix
index 77caa1315984..13cb397b1798 100644
--- a/pkgs/os-specific/linux/hd-idle/default.nix
+++ b/pkgs/os-specific/linux/hd-idle/default.nix
@@ -2,13 +2,13 @@
 
 buildGoModule rec {
   pname = "hd-idle";
-  version = "1.20";
+  version = "1.21";
 
   src = fetchFromGitHub {
     owner = "adelolmo";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-7EXfI3E83ltpjq2M/qZX2P/bNtQQBWZRBCD7i5uit0I=";
+    sha256 = "sha256-WHJcysTN9LHI1WnDuFGTyTirxXirpLpJIeNDj4sZGY0=";
   };
 
   vendorHash = null;