diff --git a/pkgs/development/python-modules/dask/default.nix b/pkgs/development/python-modules/dask/default.nix
index 6d5388a443c..740b0644381 100644
--- a/pkgs/development/python-modules/dask/default.nix
+++ b/pkgs/development/python-modules/dask/default.nix
@@ -12,12 +12,12 @@
 
 buildPythonPackage rec {
   pname = "dask";
-  version = "0.14.3";
+  version = "0.15.1";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "9bf007f9cedc08f73089f0621ff65ec0882fc0a834acef56830dfd2872908211";
+    sha256 = "f62f19ab5958b13d0ee733db18218c28a9d452a3554446a3dfb5ac3d4a5f7e34";
   };
 
   checkInputs = [ pytest ];