diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index 888955a9..351370e4 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -2,11 +2,11 @@ name: Python package
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
   release:
-    types: [ published ]
+    types: [published]
 
 jobs:
   format:
@@ -32,10 +32,11 @@ jobs:
           # stop the build if there are Python syntax errors or undefined names
           ruff check src
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [ "3.10", "3.11", "3.12", "3.13", "3.14" ]
+        python-version: ["3.10", "3.14"]
+        os: ["ubuntu-latest", "macOS-latest", "windows-latest"]
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
diff --git a/tests/test_exploratory.py b/tests/test_exploratory.py
index ec146fc6..fb2cabad 100644
--- a/tests/test_exploratory.py
+++ b/tests/test_exploratory.py
@@ -96,8 +96,8 @@ def test_run_tsne(self):
         expected_result = pd.DataFrame(
             {
                 "group": ["A", "A", "B", "B"],
-                "x": [-113.341728, 36.020717, 57.2992514, -134.729141],
-                "y": [131.169082, -59.616630, 110.601203, -39.086254],
+                "x": [-41.633194, -21.315784, -26.172028, -5.8222594],
+                "y": [28.062798, 43.488983, 7.7333646, 23.160675],
             }
         )
         # ! Ubuntu x64 yields these results: