diff --git a/pkgs/tools/networking/sing-box/default.nix b/pkgs/tools/networking/sing-box/default.nix
index 9fc7bc951adf..abc5be83d0ef 100644
--- a/pkgs/tools/networking/sing-box/default.nix
+++ b/pkgs/tools/networking/sing-box/default.nix
@@ -11,16 +11,16 @@
 
 buildGoModule rec {
   pname = "sing-box";
-  version = "1.4.2";
+  version = "1.4.3";
 
   src = fetchFromGitHub {
     owner = "SagerNet";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-OBLgAuZIqR+81rN886gIai8+uUxHDbOWnGz6jYZnGm8=";
+    hash = "sha256-ptnppqh7f6Cn5pMrqtqM39zFh2nEpOSrZtTxhSzFXS0=";
   };
 
-  vendorHash = "sha256-oDUjiMAG/vkSYS1c8lwqVlFzyvTIQrUSeJohHS9X9I0=";
+  vendorHash = "sha256-XHZoXnQJMfnaPbHHoC1toxqjq/jifAI2UqZ4cc6y034=";
 
   tags = [
     "with_quic"