diff --git a/.github/workflows/test_package.yml b/.github/workflows/test_package.yml
index 96c6da0..64067fa 100644
--- a/.github/workflows/test_package.yml
+++ b/.github/workflows/test_package.yml
@@ -6,8 +6,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-latest]
-        embedded-py: [3.11.5, 3.12.4]
+        os: [windows-latest]
+        embedded-py: [3.12.4]
         conan:
           - version: 1
             args: lumicks/testing --build=missing
@@ -47,3 +47,8 @@ jobs:
       run: ${{ env.create_pck }} -o test_embedded_python/*:env=nbconvert
     - name: Test with pylake env
       run: ${{ env.create_pck }} -o test_embedded_python/*:env=pylake
+    - if: failure()
+      uses: actions/upload-artifact@v4
+      with:
+        name: "${{ matrix.os }}-${{ matrix.embedded-py }}-${{ matrix.conan.version }}"
+        path: core/test_package