1 files changed, 5 insertions, 2 deletions
diff --git a/pkgs/development/python-modules/numpy/default.nix b/pkgs/development/python-modules/numpy/default.nix
index d427a33f80f4..75b946b40510 100644
--- a/pkgs/development/python-modules/numpy/default.nix
+++ b/pkgs/development/python-modules/numpy/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "numpy";
-  version = "1.12.1";
+  version = "1.13.1";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://pypi/n/numpy/numpy-${version}.zip";
-    sha256 = "a65266a4ad6ec8936a1bc85ce51f8600634a31a258b722c9274a80ff189d9542";
+    sha256 = "c9b0283776085cb2804efff73e9955ca279ba4edafd58d3ead70b61d209c4fbb";
   };
 
   disabled = isPyPy;
@@ -21,6 +21,7 @@ buildPythonPackage rec {
 
   preConfigure = ''
     sed -i 's/-faltivec//' numpy/distutils/system_info.py
+    export NPY_NUM_BUILD_JOBS=$NIX_BUILD_CORES
   '';
 
   preBuild = ''
@@ -32,6 +33,8 @@ buildPythonPackage rec {
     EOF
   '';
 
+  enableParallelBuilding = true;
+
   checkPhase = ''
     runHook preCheck
     pushd dist