diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 4478327..b0e4fb2 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -35,9 +35,9 @@ jobs:
       - name: test
         run: mix test --cover --trace
       - name: archive code coverage
-        uses: actions/upload-artifact@v1
+        uses: actions/upload-artifact@v4
         with:
-          name: cover
+          name: cover-${{ matrix.runs-on }}
           path: cover
 
   static_code_analysis: