diff --git a/pkgs/by-name/kn/knot-dns/package.nix b/pkgs/by-name/kn/knot-dns/package.nix
index f2c58300c055..3f0a3cf10d95 100644
--- a/pkgs/by-name/kn/knot-dns/package.nix
+++ b/pkgs/by-name/kn/knot-dns/package.nix
@@ -33,11 +33,11 @@
 
 stdenv.mkDerivation rec {
   pname = "knot-dns";
-  version = "3.4.6";
+  version = "3.4.7";
 
   src = fetchurl {
     url = "https://secure.nic.cz/files/knot-dns/knot-${version}.tar.xz";
-    sha256 = "sha256-0ZxaH/lLTyYCfWNd4Qjb/Ij1ZSvobMs7qaRO6b4OWDk=";
+    sha256 = "sha256-3TRspvOvq83F6boJ3WZ7AQWQu2akL0VBAh+51vBz2sw=";
   };
 
   outputs = [