diff --git a/pkgs/by-name/wi/winbox4/package.nix b/pkgs/by-name/wi/winbox4/package.nix
index cf6c823ef66f..660ad771f703 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 = "4.0beta19";
+  version = "4.0beta20";
 
   src = fetchurl {
     name = "WinBox_Linux-${finalAttrs.version}.zip";
     url = "https://download.mikrotik.com/routeros/winbox/${finalAttrs.version}/WinBox_Linux.zip";
-    hash = "sha256-+hDhQT09mKaO65TK0AF6+o/FdmgdlNm1qUSkWZybj9s=";
+    hash = "sha256-mU+z7yRYKXnGAXHB5LS5SVUgIzRlR9nV2FzXispntF0=";
   };
 
   sourceRoot = ".";