diff --git a/pkgs/development/python-modules/lightgbm/default.nix b/pkgs/development/python-modules/lightgbm/default.nix
index 54ca047acdd9..6c64228249e1 100644
--- a/pkgs/development/python-modules/lightgbm/default.nix
+++ b/pkgs/development/python-modules/lightgbm/default.nix
@@ -15,9 +15,15 @@
 , llvmPackages
 , numpy
 , scipy
-, scikit-learn
 , pythonOlder
 
+# optionals
+, cffi
+, dask
+, pandas
+, pyarrow
+, scikit-learn
+
 # optionals: gpu
 , boost
 , ocl-icd
@@ -32,14 +38,14 @@ assert cudaSupport -> gpuSupport != true;
 
 buildPythonPackage rec {
   pname = "lightgbm";
-  version = "4.1.0";
-  format = "pyproject";
+  version = "4.2.0";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-vuWd0mmpOwk/LGENSmaDp+qHxj0+o1xiISPOLAILKrw=";
+    hash = "sha256-ik0FHfKrIhiZihb3cS6EPunpbYsJ/7/MGFM9oSfg2gI=";
   };
 
   nativeBuildInputs = [
@@ -68,7 +74,6 @@ buildPythonPackage rec {
   propagatedBuildInputs = [
     numpy
     scipy
-    scikit-learn
   ];
 
   pypaBuildFlags = lib.optionals gpuSupport [
@@ -81,6 +86,25 @@ buildPythonPackage rec {
     export HOME=$(mktemp -d)
   '';
 
+  passthru.optional-dependencies = {
+    arrow = [
+      cffi
+      pyarrow
+    ];
+    dask = [
+      dask
+      pandas
+    ] ++ dask.optional-dependencies.array
+      ++ dask.optional-dependencies.dataframe
+      ++ dask.optional-dependencies.distributed;
+    pandas = [
+      pandas
+    ];
+    scikit-learn = [
+      scikit-learn
+    ];
+  };
+
   # The pypi package doesn't distribute the tests from the GitHub
   # repository. It contains c++ tests which don't seem to wired up to
   # `make check`.