diff --git a/pkgs/development/python-modules/matplotlib/default.nix b/pkgs/development/python-modules/matplotlib/default.nix
index 392cc66786a1..bb7e75449c84 100644
--- a/pkgs/development/python-modules/matplotlib/default.nix
+++ b/pkgs/development/python-modules/matplotlib/default.nix
@@ -22,14 +22,14 @@ assert enableTk -> (tcl != null)
 assert enableQt -> pyqt4 != null;
 
 buildPythonPackage rec {
-  version = "3.0.3";
+  version = "3.1.1";
   pname = "matplotlib";
 
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1dzpgpj34i6lv9wgacqdshai2d237m3vymqrgl52sj1gwf4kblz1";
+    sha256 = "1febd22afe1489b13c6749ea059d392c03261b2950d1d45c17e3aed812080c93";
   };
 
   NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.isDarwin "-I${libcxx}/include/c++/v1";