diff --git a/pkgs/by-name/te/technitium-dns-server-library/package.nix b/pkgs/by-name/te/technitium-dns-server-library/package.nix
index 8971d7dfc795..185f1f4519c4 100644
--- a/pkgs/by-name/te/technitium-dns-server-library/package.nix
+++ b/pkgs/by-name/te/technitium-dns-server-library/package.nix
@@ -7,13 +7,13 @@
 }:
 buildDotnetModule rec {
   pname = "technitium-dns-server-library";
-  version = "dns-server-v14.2.0";
+  version = "14.3.0";
 
   src = fetchFromGitHub {
     owner = "TechnitiumSoftware";
     repo = "TechnitiumLibrary";
-    tag = version;
-    hash = "sha256-a5gCwOxBlp+MzcxrYWY56ihb2ayC/l9G3SQ31ZVpBZc=";
+    tag = "dns-server-v${version}";
+    hash = "sha256-Z8qGp9zMsmPNroO2cS7t7A4lwQ7pnGdzCAcCCEYoXrE=";
     name = "${pname}-${version}";
   };
 
diff --git a/pkgs/by-name/te/technitium-dns-server/package.nix b/pkgs/by-name/te/technitium-dns-server/package.nix
index 49533367f839..4fabd1c7f8f3 100644
--- a/pkgs/by-name/te/technitium-dns-server/package.nix
+++ b/pkgs/by-name/te/technitium-dns-server/package.nix
@@ -10,13 +10,13 @@
 }:
 buildDotnetModule rec {
   pname = "technitium-dns-server";
-  version = "14.2.0";
+  version = "14.3.0";
 
   src = fetchFromGitHub {
     owner = "TechnitiumSoftware";
     repo = "DnsServer";
     tag = "v${version}";
-    hash = "sha256-zLm6uEC8BoaDfyzmLErJTOzzSKxrmb0j3VhEcsyizI4=";
+    hash = "sha256-NUH1gn8kdtMBKC5+XEqqTGySNMCDFGF5yy6NbGeRvvY=";
     name = "${pname}-${version}";
   };