diff --git a/pkgs/development/python-modules/dask-ml/default.nix b/pkgs/development/python-modules/dask-ml/default.nix
index ff1b145ee8a2..62f2a30507b5 100644
--- a/pkgs/development/python-modules/dask-ml/default.nix
+++ b/pkgs/development/python-modules/dask-ml/default.nix
@@ -17,13 +17,13 @@
 }:
 
 buildPythonPackage rec {
-  version = "1.8.0";
+  version = "1.9.0";
   pname = "dask-ml";
   disabled = pythonOlder "3.6"; # >= 3.6
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "8fc4ac3ec1915e382fb8cae9ff1ec9b5ac1bee0b6f4c6975d6e6cb7191a4a815";
+    sha256 = "2f376a7114133b484a6d393f62298473116fc49c79ec7d50d5b031d752f54307";
   };
 
   nativeBuildInputs = [