diff --git a/.github/workflows/nnunet_smoke_tests.yaml b/.github/workflows/nnunet_smoke_tests.yaml
index 5c1c0d1da..b4411eea8 100644
--- a/.github/workflows/nnunet_smoke_tests.yaml
+++ b/.github/workflows/nnunet_smoke_tests.yaml
@@ -53,7 +53,7 @@ jobs:
         run: uv run pytest --test-group-count=4 --test-group=${{ matrix.group }} -v --cov fl4health --cov-report=xml tests/smoke_tests/test_nnunet_smoke_tests.py
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           slug: VectorInstitute/FL4Health
diff --git a/.github/workflows/standard_smoke_tests.yaml b/.github/workflows/standard_smoke_tests.yaml
index c683de5c5..172afdb3d 100644
--- a/.github/workflows/standard_smoke_tests.yaml
+++ b/.github/workflows/standard_smoke_tests.yaml
@@ -53,7 +53,7 @@ jobs:
         run: uv run pytest --test-group-count=4 --test-group=${{ matrix.group }} -v --cov fl4health --cov-report=xml tests/smoke_tests/test_standard_smoke_tests.py
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           slug: VectorInstitute/FL4Health
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index a58a40ff4..cf1b43964 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -48,7 +48,7 @@ jobs:
         run: uv run pytest -m "not smoketest" -v --cov fl4health --cov-report=xml tests
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           slug: VectorInstitute/FL4Health