diff --git a/.github/workflows/run_tests.yaml b/.github/workflows/run_tests.yaml
index b465542..14280d8 100644
--- a/.github/workflows/run_tests.yaml
+++ b/.github/workflows/run_tests.yaml
@@ -48,7 +48,7 @@ jobs:
           pytest --cov=linsolve --cov-report xml:coverage.xml
 
       - name: Upload Coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: ./coverage.xml
           flags: unittests