diff --git a/pkgs/tools/networking/smartdns/default.nix b/pkgs/tools/networking/smartdns/default.nix
index 25054fc1944d..a0d5e21e50e4 100644
--- a/pkgs/tools/networking/smartdns/default.nix
+++ b/pkgs/tools/networking/smartdns/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "smartdns";
-  version = "41";
+  version = "42";
 
   src = fetchFromGitHub {
     owner = "pymumu";
     repo = pname;
     rev = "Release${version}";
-    sha256 = "sha256-FVHOjW5SEShxTPPd4IuEfPV6vvqr0RepV976eJmxqwM=";
+    hash = "sha256-FVHOjW5SEShxTPPd4IuEfPV6vvqr0RepV976eJmxqwM=";
   };
 
   buildInputs = [ openssl ];