diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 34d6170..2771c0e 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -14,8 +14,11 @@ permissions:
 
 jobs:
   build:
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest, windows-latest]
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.platform }}
 
     steps:
     - uses: actions/checkout@v4
@@ -35,4 +38,4 @@ jobs:
         # stop the build if there are Python syntax errors or undefined names
         poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        poetry run flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        poetry run flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
\ No newline at end of file
diff --git a/keras_mdn_layer/__init__.py b/keras_mdn_layer/__init__.py
index 95e87e8..fc0ac75 100644
--- a/keras_mdn_layer/__init__.py
+++ b/keras_mdn_layer/__init__.py
@@ -8,6 +8,7 @@
 
 Provided under MIT License
 """
+
 import os;os.environ["TF_USE_LEGACY_KERAS"]="1"
 from tensorflow import keras
 from tensorflow.keras import backend as K
diff --git a/poetry.lock b/poetry.lock
index dcdb134..7a21a83 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -3675,4 +3675,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "3.11.*"
-content-hash = "bae307fb5fa531a32c695e116ccef0e136dd7fdd2ee0fbfb896d74e24d537ea6"
+content-hash = "bae307fb5fa531a32c695e116ccef0e136dd7fdd2ee0fbfb896d74e24d537ea6"
\ No newline at end of file