diff --git a/pkgs/tools/admin/salt/default.nix b/pkgs/tools/admin/salt/default.nix
index b50564602256..4077c4fb9ecb 100644
--- a/pkgs/tools/admin/salt/default.nix
+++ b/pkgs/tools/admin/salt/default.nix
@@ -8,19 +8,18 @@
 
 python2Packages.buildPythonApplication rec {
   pname = "salt";
-  version = "2017.7.2";
-  name = "${pname}-${version}";
+  version = "2017.7.4";
 
   src = python2Packages.fetchPypi {
     inherit pname version;
-    sha256 = "0h18zwp1w90rgxpmqgrmn9wp31h03f0vak8lpnnbh0dzbbgcffzz";
+    sha256 = "15xfvclk3ns8vk17j7bfy4alq7ab5x3y3jnpqzp5583bfyak0mqx";
   };
 
   propagatedBuildInputs = with python2Packages; [
     futures
     jinja2
     markupsafe
-    msgpack
+    msgpack-python
     pycrypto
     pyyaml
     pyzmq