diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 5d69a2d..1b38158 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -43,7 +43,7 @@ jobs:
         export COVERAGE_RCFILE=$PWD/.coveragerc
         cd test_output
         python3 -m coverage xml
-    - uses: actions/upload-artifact@v2
+    - uses: actions/upload-artifact@v4
       with:
         name: coverage-report
         path: test_output/coverage.xml