diff --git a/pkgs/desktops/gnome/core/zenity/default.nix b/pkgs/desktops/gnome/core/zenity/default.nix
index 667d90c569ff..e8be274a1f60 100644
--- a/pkgs/desktops/gnome/core/zenity/default.nix
+++ b/pkgs/desktops/gnome/core/zenity/default.nix
@@ -1,6 +1,7 @@
 { stdenv
 , lib
 , fetchurl
+, help2man
 , meson
 , ninja
 , pkg-config
@@ -15,14 +16,15 @@
 
 stdenv.mkDerivation rec {
   pname = "zenity";
-  version = "3.99.1";
+  version = "3.99.2";
 
   src = fetchurl {
     url = "mirror://gnome/sources/zenity/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "1Pg3Vkkleu9eSpLbL6m3qpIg8nHoJL9jLqM9gQBnu6s=";
+    sha256 = "oZR4kGuYi082fl6mOlkh5PmMuCVbugXrXK2LWhikFo8=";
   };
 
   nativeBuildInputs = [
+    help2man
     meson
     ninja
     pkg-config