diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index bef9cfe..8f71ab0 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -35,7 +35,7 @@ jobs:
         pytest --cov=./ --cov-report=xml
 
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         file: ./coverage.xml
         env_vars: OS,PYTHON