diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index a0c7991..50d7565 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -109,7 +109,7 @@ jobs:
 
       - name: Upload coverage data
         if: ${{ startsWith(matrix.tox_env, 'py') }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: "coverage.xml"
           name: ${{ matrix.tox_env }}