diff --git a/pkgs/development/python-modules/llvmlite/default.nix b/pkgs/development/python-modules/llvmlite/default.nix
index 57deaf3caf3..d702d8f95b0 100644
--- a/pkgs/development/python-modules/llvmlite/default.nix
+++ b/pkgs/development/python-modules/llvmlite/default.nix
@@ -1,5 +1,5 @@
 { stdenv
-, fetchurl
+, fetchPypi
 , buildPythonPackage
 , python
 , llvm
@@ -10,21 +10,20 @@
 
 buildPythonPackage rec {
   pname = "llvmlite";
-  name = "${pname}-${version}";
-  version = "0.20.0";
+  version = "0.21.0";
 
   disabled = isPyPy;
 
-  src = fetchurl {
-    url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${name}.tar.gz";
-    sha256 = "b2f174848df16bb9195a07fec102110a06d018da736bd9b3570a54d44c797c29";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "3a5dd0695fdfb9fd47464cd71791b84935bf9642e11f4811d57aa1f2da8cdaa8";
   };
 
   propagatedBuildInputs = [ llvm ] ++ stdenv.lib.optional (pythonOlder "3.4") enum34;
 
   # Disable static linking
   # https://github.com/numba/llvmlite/issues/93
-  patchPhase = ''
+  postPatch = ''
     substituteInPlace ffi/Makefile.linux --replace "-static-libstdc++" ""
 
     substituteInPlace llvmlite/tests/test_binding.py --replace "test_linux" "nope"
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 270330cdcde..c932d35747f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -10304,7 +10304,7 @@ in {
 
   locustio = callPackage ../development/python-modules/locustio { };
 
-  llvmlite = callPackage ../development/python-modules/llvmlite {llvm=pkgs.llvm_4;};
+  llvmlite = callPackage ../development/python-modules/llvmlite {llvm=pkgs.llvm_5;};
 
   lockfile = buildPythonPackage rec {
     pname = "lockfile";