diff --git a/pkgs/games/cbonsai/default.nix b/pkgs/games/cbonsai/default.nix
index 0425f4f56b3b..30abbba93f28 100644
--- a/pkgs/games/cbonsai/default.nix
+++ b/pkgs/games/cbonsai/default.nix
@@ -1,17 +1,17 @@
-{ stdenv, lib, fetchFromGitLab, ncurses, pkg-config, nix-update-script }:
+{ stdenv, lib, fetchFromGitLab, ncurses, pkg-config, nix-update-script, scdoc }:
 
 stdenv.mkDerivation rec {
-  version = "1.2.1";
   pname = "cbonsai";
+  version = "1.3.1";
 
   src = fetchFromGitLab {
     owner = "jallbrit";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-kofJqMoBsvHrV3XfIQbSYO7OWpN7UgvrSs3WX3IVAJs=";
+    sha256 = "sha256-XFK6DiIb8CzVubTnEMkqRW8xZkX/SWjUsrfS+I7LOs8=";
   };
 
-  nativeBuildInputs = [ pkg-config ];
+  nativeBuildInputs = [ pkg-config scdoc ];
   buildInputs = [ ncurses ];
 
   makeFlags = [ "CC=${stdenv.cc.targetPrefix}cc" ];