diff --git a/pkgs/development/python-modules/dask/default.nix b/pkgs/development/python-modules/dask/default.nix
index 5ae749f9373..ba8c06f73f2 100644
--- a/pkgs/development/python-modules/dask/default.nix
+++ b/pkgs/development/python-modules/dask/default.nix
@@ -1,6 +1,8 @@
 { lib
+, bokeh
 , buildPythonPackage
 , fetchPypi
+, fsspec
 , pytest
 , pythonOlder
 , cloudpickle
@@ -13,17 +15,18 @@
 
 buildPythonPackage rec {
   pname = "dask";
-  version = "1.2.2";
+  version = "2.2.0";
 
   disabled = pythonOlder "3.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "5e7876bae2a01b355d1969b73aeafa23310febd8c353163910b73e93dc7e492c";
+    sha256 = "0wkiqkckwy7fv6m86cs3m3g6jdikkkw84ki9hiwp60xpk5xngnf0";
   };
 
   checkInputs = [ pytest ];
-  propagatedBuildInputs = [ cloudpickle  numpy toolz dill pandas partd ];
+  propagatedBuildInputs = [
+    bokeh cloudpickle dill fsspec numpy pandas partd toolz ];
 
   checkPhase = ''
     py.test dask