diff --git a/pkgs/development/tools/casperjs/default.nix b/pkgs/development/tools/casperjs/default.nix
index bd63a0e68eeb..5b4b8cc752d9 100644
--- a/pkgs/development/tools/casperjs/default.nix
+++ b/pkgs/development/tools/casperjs/default.nix
@@ -1,40 +1,42 @@
-{ stdenv, fetchgit, python, phantomjs }:
+{ stdenv, fetchFromGitHub, phantomjs, python, nodePackages }:
 
-stdenv.mkDerivation rec {
-  name = "casperjs-1.0.0-RC5";
+let version = "1.0.0-RC5";
 
-  src = fetchgit {
-    url = "git://github.com/n1k0/casperjs.git";
-    rev = "refs/tags/1.0.0-RC5";
-    sha256 = "e7fd6b94b4b304416159196208dea7f6e8841a667df102eb378a698a92f0f2c7";
+in stdenv.mkDerivation rec {
+
+  name = "casperjs-${version}";
+
+  src = fetchFromGitHub {
+    owner = "casperjs";
+    repo = "casperjs";
+    rev = version;
+    sha256 = "10b25jmh9zmlp77h0p3n9d6bnl3wn4iv3h3qnsrgijfszxyh0wgw";
   };
 
+  buildInputs = [ phantomjs python nodePackages.eslint ];
+
   patchPhase = ''
     substituteInPlace bin/casperjs --replace "/usr/bin/env python" "${python}/bin/python" \
                                    --replace "'phantomjs'" "'${phantomjs}/bin/phantomjs'"
   '';
 
+  dontBuild = true;
+
   installPhase = ''
-    mkdir -p $out/share/casperjs $out/bin
-    cp -a . $out/share/casperjs/.
-    ln -s $out/share/casperjs/bin/casperjs $out/bin
+    mv $PWD $out
   '';
 
   meta = {
-    description = "Navigation scripting & testing utility for PhantomJS";
+
+    description = ''
+      Navigation scripting & testing utility for PhantomJS and SlimerJS
+    '';
+
     longDescription = ''
-      CasperJS is a navigation scripting & testing utility for PhantomJS.
-      It eases the process of defining a full navigation scenario and provides useful high-level
-      functions, methods & syntaxic sugar for doing common tasks such as:
-      - defining & ordering navigation steps
-      - filling forms
-      - clicking links
-      - capturing screenshots of a page (or an area)
-      - making assertions on remote DOM
-      - logging & events
-      - downloading base64 encoded resources, even binary ones
-      - catching errors and react accordingly
-      - writing functional test suites, exporting results as JUnit XML (xUnit)
+      CasperJS is a navigation scripting & testing utility for PhantomJS and
+      SlimerJS (still experimental). It eases the process of defining a full
+      navigation scenario and provides useful high-level functions, methods &
+      syntactic sugar for doing common tasks.
     '';
 
     homepage = http://casperjs.org;