diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 70721b6..86f3f55 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -89,7 +89,7 @@ jobs:
 
       # https://github.com/codecov/codecov-action
       - name: Upload coverage results to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: ./coverage.xml
           flags: main