diff --git a/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix b/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
index 78f0a9c31fc8..0e052e847ccb 100644
--- a/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
@@ -12,7 +12,7 @@ pythonPackages.buildPythonApplication rec {
     sha256 = "04sgns9qczzw2152gqdr6bjyy4fmgs26cz8n3qck94l0j51rxhz8";
   };
 
-  propagatedBuildInputs = with pythonPackages; [ msgpack pyqt4 ] ++ [ openssl ];
+  propagatedBuildInputs = with pythonPackages; [ msgpack pyqt4 numpy pyopencl ] ++ [ openssl ];
 
   preConfigure = ''
     # Remove interaction and misleading output
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8c22c8a2c9dd..46014eee0c37 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8051,13 +8051,13 @@ in {
 
   pytools = buildPythonPackage rec {
     name = "pytools-${version}";
-    version = "2016.2.1";
+    version = "2017.4";
 
     src = pkgs.fetchFromGitHub {
       owner = "inducer";
       repo = "pytools";
-      rev = "e357a9de14d0ff5131284f369d220d8b439a7906";
-      sha256 = "0g5w1cira1bl9f2ji11cbr9daj947nrfydydymjp4bbxbpl2jnaq";
+      rev = "8078e74265bb5a3c9676c698595ab5450cd2bfe7";
+      sha256 = "17q61l79fcxkj5jxg3fnymi652sdjp5s6kpsabgxp22kma9crr28";
     };
 
     buildInputs = with self; [