diff --git a/pkgs/applications/terminal-emulators/kitty/default.nix b/pkgs/applications/terminal-emulators/kitty/default.nix
index 91d7b48738e..5324dc8a10b 100644
--- a/pkgs/applications/terminal-emulators/kitty/default.nix
+++ b/pkgs/applications/terminal-emulators/kitty/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, substituteAll, fetchFromGitHub, python3Packages, libunistring,
+{ lib, stdenv, fetchFromGitHub, python3Packages, libunistring,
   harfbuzz, fontconfig, pkg-config, ncurses, imagemagick, xsel,
   libstartup_notification, libGL, libX11, libXrandr, libXinerama, libXcursor,
   libxkbcommon, libXi, libXext, wayland-protocols, wayland,
@@ -21,14 +21,14 @@
 with python3Packages;
 buildPythonApplication rec {
   pname = "kitty";
-  version = "0.19.3";
+  version = "0.20.2";
   format = "other";
 
   src = fetchFromGitHub {
     owner = "kovidgoyal";
     repo = "kitty";
     rev = "v${version}";
-    sha256 = "0r49bybqy6c0n1lz6yc85py80wb40w757m60f5rszjf200wnyl6s";
+    sha256 = "sha256-FquvC3tL565711OQmq2ddNwpyJQGgn4dhG/TYZdCRU0=";
   };
 
   buildInputs = [
@@ -135,7 +135,7 @@ buildPythonApplication rec {
   meta = with lib; {
     homepage = "https://github.com/kovidgoyal/kitty";
     description = "A modern, hackable, featureful, OpenGL based terminal emulator";
-    license = licenses.gpl3;
+    license = licenses.gpl3Only;
     changelog = "https://sw.kovidgoyal.net/kitty/changelog.html";
     platforms = platforms.darwin ++ platforms.linux;
     maintainers = with maintainers; [ tex rvolosatovs Luflosi ];