diff --git a/pkgs/development/python-modules/more-itertools/2.7.nix b/pkgs/development/python-modules/more-itertools/2.7.nix
new file mode 100644
index 00000000000..e0786aefa2c
--- /dev/null
+++ b/pkgs/development/python-modules/more-itertools/2.7.nix
@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+, six
+, stdenv
+}:
+
+
+buildPythonPackage rec {
+  pname = "more-itertools";
+  version = "5.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "38a936c0a6d98a38bcc2d03fdaaedaba9f412879461dd2ceff8d37564d6522e4";
+  };
+
+  checkInputs = [ nose ];
+  propagatedBuildInputs = [ six ];
+
+  # iterable = range(10 ** 10)  # Is efficiently reversible
+  # OverflowError: Python int too large to convert to C long
+  doCheck = !stdenv.hostPlatform.is32bit;
+
+  meta = {
+    homepage = https://more-itertools.readthedocs.org;
+    description = "Expansion of the itertools module";
+    license = lib.licenses.mit;
+  };
+}
diff --git a/pkgs/development/python-modules/more-itertools/default.nix b/pkgs/development/python-modules/more-itertools/default.nix
index b7131902962..999708697a9 100644
--- a/pkgs/development/python-modules/more-itertools/default.nix
+++ b/pkgs/development/python-modules/more-itertools/default.nix
@@ -9,11 +9,11 @@
 
 buildPythonPackage rec {
   pname = "more-itertools";
-  version = "4.3.0";
+  version = "6.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "c476b5d3a34e12d40130bc2f935028b5f636df8f372dc2c1c01dc19681b2039e";
+    sha256 = "590044e3942351a1bdb1de960b739ff4ce277960f2425ad4509446dbace8d9d1";
   };
 
   checkInputs = [ nose ];
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 33b9645a8a1..93355ba46e4 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5030,7 +5030,9 @@ in {
 
   inflect = callPackage ../development/python-modules/inflect { };
 
-  more-itertools = callPackage ../development/python-modules/more-itertools { };
+  more-itertools = if isPy27 then
+    callPackage ../development/python-modules/more-itertools/2.7.nix { }
+  else callPackage ../development/python-modules/more-itertools { };
 
   jaraco_functools = callPackage ../development/python-modules/jaraco_functools { };