diff --git a/pkgs/applications/video/mpv/default.nix b/pkgs/applications/video/mpv/default.nix
index 8be842dfc68c..4e4c623ca607 100644
--- a/pkgs/applications/video/mpv/default.nix
+++ b/pkgs/applications/video/mpv/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, fetchFromGitHub, makeWrapper
 , docutils, perl, pkgconfig, python3, which, ffmpeg_4
-, freefont_ttf, freetype, libass, libpthreadstubs
+, freefont_ttf, freetype, libass, libpthreadstubs, mujs
 , lua, luasocket, libuchardet, libiconv ? null, darwin
 
 , waylandSupport ? false
@@ -139,7 +139,7 @@ in stdenv.mkDerivation rec {
 
   buildInputs = [
     ffmpeg_4 freetype libass libpthreadstubs
-    lua luasocket libuchardet
+    lua luasocket libuchardet mujs
   ] ++ optional alsaSupport        alsaLib
     ++ optional archiveSupport     libarchive
     ++ optional bluraySupport      libbluray
diff --git a/pkgs/development/interpreters/mujs/default.nix b/pkgs/development/interpreters/mujs/default.nix
index c7663a116763..5a8b78143c5e 100644
--- a/pkgs/development/interpreters/mujs/default.nix
+++ b/pkgs/development/interpreters/mujs/default.nix
@@ -1,15 +1,15 @@
-{ stdenv, fetchgit, clang }:
+{ stdenv, fetchurl, readline }:
 
 stdenv.mkDerivation rec {
-  name = "mujs-2017-01-24";
+  name = "mujs-${version}";
+  version = "1.0.5";
 
-  src = fetchgit {
-    url = git://git.ghostscript.com/mujs.git;
-    rev  = "4006739a28367c708dea19aeb19b8a1a9326ce08";
-    sha256 = "0wvjl8lkh0ga6fkmxgjqq77yagncbv1bdy6hpnxq31x3mkwn1s51";
+  src = fetchurl {
+    url = "https://mujs.com/downloads/mujs-${version}.tar.xz";
+    sha256 = "02cqrfnww2s3ylcvqin1951f2c5nzpby8gxb207p2hbrivbg8f0l";
   };
 
-  buildInputs = [ clang ];
+  buildInputs = [ readline ];
 
   makeFlags = [ "prefix=$(out)" ];