diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index cce8b96..f7385f0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [macos-latest, ubuntu-latest]
+        os: [macos-latest, ubuntu-latest, windows-latest]
         python: [3.8]
 
     steps:
diff --git a/stree/Splitter.py b/stree/Splitter.py
index 5c78775..2829503 100644
--- a/stree/Splitter.py
+++ b/stree/Splitter.py
@@ -367,9 +367,8 @@ class Splitter:
             .get_support(indices=True)
         )
 
-    @staticmethod
     def _fs_mutual(
-        dataset: np.array, labels: np.array, max_features: int
+        self, dataset: np.array, labels: np.array, max_features: int
     ) -> tuple:
         """Return the best features with mutual information with labels
 
@@ -389,7 +388,9 @@ class Splitter:
             indices of the features selected
         """
         # return best features with mutual info with the label
-        feature_list = mutual_info_classif(dataset, labels)
+        feature_list = mutual_info_classif(
+            dataset, labels, random_state=self._random_state
+        )
         return tuple(
             sorted(
                 range(len(feature_list)), key=lambda sub: feature_list[sub]
diff --git a/stree/__init__.py b/stree/__init__.py
index 03c70d4..546ee03 100644
--- a/stree/__init__.py
+++ b/stree/__init__.py
@@ -1,6 +1,6 @@
 from .Strees import Stree, Siterator
 
-__version__ = "1.2.2"
+__version__ = "1.2.3"
 
 __author__ = "Ricardo Montañana Gómez"
 __copyright__ = "Copyright 2020-2021, Ricardo Montañana Gómez"