diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index a12afe76d680..209b43d6be8a 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -19700,6 +19700,12 @@
     githubId = 2347889;
     name = "Sauyon Lee";
   };
+  savalet = {
+    email = "savinien.petitjean@gmail.com";
+    github = "savalet";
+    githubId = 73446695;
+    name = "savalet";
+  };
   savannidgerinel = {
     email = "savanni@luminescent-dreams.com";
     github = "savannidgerinel";
diff --git a/pkgs/by-name/wi/winbox4/package.nix b/pkgs/by-name/wi/winbox4/package.nix
index a3c9a7b83a9a..49002ed2af02 100644
--- a/pkgs/by-name/wi/winbox4/package.nix
+++ b/pkgs/by-name/wi/winbox4/package.nix
@@ -18,12 +18,12 @@
 
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "winbox";
-  version = "4.0beta9";
+  version = "4.0beta12";
 
   src = fetchurl {
     name = "WinBox_Linux-${finalAttrs.version}.zip";
     url = "https://download.mikrotik.com/routeros/winbox/${finalAttrs.version}/WinBox_Linux.zip";
-    hash = "sha256-129ejj3WxYx5kQTy6EOLtBolhx076yMVb5ymkAoXrwc=";
+    hash = "sha256-zmGJr6HQ5/KWOKUJ0iPqRuhQ0/PpVwKsGPcoeklzg2I=";
   };
 
   sourceRoot = ".";
@@ -121,6 +121,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     maintainers = with lib.maintainers; [
       Scrumplex
       yrd
+      savalet
     ];
   };
 })