2 files changed, 4 insertions, 4 deletions
diff --git a/pkgs/development/python-modules/matplotlib/2.nix b/pkgs/development/python-modules/matplotlib/2.nix
index a6ee1a3bade..96d33b681eb 100644
--- a/pkgs/development/python-modules/matplotlib/2.nix
+++ b/pkgs/development/python-modules/matplotlib/2.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchPypi, writeText, python, buildPythonPackage, pycairo, backports_functools_lru_cache
-, which, cycler, dateutil, nose, numpy, pyparsing, sphinx, tornado, kiwisolver
+, which, cycler, python-dateutil, nose, numpy, pyparsing, sphinx, tornado, kiwisolver
 , freetype, libpng, pkg-config, mock, pytz, pygobject3, gobject-introspection, functools32, subprocess32
 , fetchpatch
 , enableGhostscript ? false, ghostscript, gtk3
@@ -38,7 +38,7 @@ buildPythonPackage rec {
     ++ lib.optional stdenv.isDarwin [ Cocoa ];
 
   propagatedBuildInputs =
-    [ cycler dateutil nose numpy pyparsing tornado freetype kiwisolver
+    [ cycler python-dateutil nose numpy pyparsing tornado freetype kiwisolver
       libpng mock pytz ]
     ++ lib.optional (pythonOlder "3.3") backports_functools_lru_cache
     ++ lib.optionals enableGtk3 [ cairo pycairo gtk3 gobject-introspection pygobject3 ]
diff --git a/pkgs/development/python-modules/matplotlib/default.nix b/pkgs/development/python-modules/matplotlib/default.nix
index 75f75e981ce..beddaf6810d 100644
--- a/pkgs/development/python-modules/matplotlib/default.nix
+++ b/pkgs/development/python-modules/matplotlib/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchPypi, writeText, buildPythonPackage, isPy3k, pycairo
-, which, cycler, dateutil, numpy, pyparsing, sphinx, tornado, kiwisolver
+, which, cycler, python-dateutil, numpy, pyparsing, sphinx, tornado, kiwisolver
 , freetype, qhull, libpng, pkg-config, mock, pytz, pygobject3, gobject-introspection
 , certifi, pillow
 , enableGhostscript ? true, ghostscript, gtk3
@@ -36,7 +36,7 @@ buildPythonPackage rec {
     ++ lib.optional stdenv.isDarwin [ Cocoa ];
 
   propagatedBuildInputs =
-    [ cycler dateutil numpy pyparsing tornado freetype qhull
+    [ cycler python-dateutil numpy pyparsing tornado freetype qhull
       kiwisolver certifi libpng mock pytz pillow ]
     ++ lib.optionals enableGtk3 [ cairo pycairo gtk3 gobject-introspection pygobject3 ]
     ++ lib.optionals enableTk [ tcl tk tkinter libX11 ]