diff --git a/pkgs/tools/networking/whois/default.nix b/pkgs/tools/networking/whois/default.nix
index 7e9e20dd3b81..b87991003cf1 100644
--- a/pkgs/tools/networking/whois/default.nix
+++ b/pkgs/tools/networking/whois/default.nix
@@ -1,14 +1,14 @@
 { lib, stdenv, fetchFromGitHub, perl, gettext, pkg-config, libidn2, libiconv }:
 
 stdenv.mkDerivation rec {
-  version = "5.5.12";
+  version = "5.5.13";
   pname = "whois";
 
   src = fetchFromGitHub {
     owner = "rfc1036";
     repo = "whois";
     rev = "v${version}";
-    sha256 = "sha256-UJy71VKEKPYfRXZB2lJiy6Ua6BkGW9Uz0zXciZC4oJE=";
+    sha256 = "sha256-Qd1tPRKbiTNmsOdawxQhJO1ykEA1VdAAXeBPPVlXwvI=";
   };
 
   nativeBuildInputs = [ perl gettext pkg-config ];