diff --git a/pkgs/servers/dns/nsd/default.nix b/pkgs/servers/dns/nsd/default.nix
index 1f82bde0384c..eecef52e2b4e 100644
--- a/pkgs/servers/dns/nsd/default.nix
+++ b/pkgs/servers/dns/nsd/default.nix
@@ -16,11 +16,11 @@
 
 stdenv.mkDerivation rec {
   pname = "nsd";
-  version = "4.8.0";
+  version = "4.9.1";
 
   src = fetchurl {
     url = "https://www.nlnetlabs.nl/downloads/${pname}/${pname}-${version}.tar.gz";
-    sha256 = "sha256-gg2k44RyGRX0vK9/K+2YUZ2lY8bkwTDHQsckdg7AKgo=";
+    sha256 = "sha256-psI6U+6BEfpx53t1ZdG49IbqaVdwgWWF+93xTkNn5t8=";
   };
 
   prePatch = ''