diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b59992f..ec95d0d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -25,6 +25,6 @@ jobs:
       - name: Flake8 Lint Check
         run: flake8
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.github/workflows/merge.yaml b/.github/workflows/merge.yaml
index cdcc175..40862f9 100644
--- a/.github/workflows/merge.yaml
+++ b/.github/workflows/merge.yaml
@@ -27,6 +27,6 @@ jobs:
       - name: Flake8 Lint Check
         run: flake8
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
\ No newline at end of file