diff --git a/pkgs/development/python-modules/pyx/default.nix b/pkgs/development/python-modules/pyx/default.nix
index a377845563aa..63e6e6321007 100644
--- a/pkgs/development/python-modules/pyx/default.nix
+++ b/pkgs/development/python-modules/pyx/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "pyx";
-  version = "0.14.1";
+  version = "0.15";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "05d1b7fc813379d2c12fcb5bd0195cab522b5aabafac88f72913f1d47becd912";
+    sha256 = "0fc3b00c5e7fb6f4aefbf63b95f624297dde47700a82b8b5ad6ebb346b5e4977";
   };
 
   disabled = !isPy3k;