diff --git a/.github/workflows/tests-nightly.yml b/.github/workflows/tests-nightly.yml
index 75a0b143..385894ae 100644
--- a/.github/workflows/tests-nightly.yml
+++ b/.github/workflows/tests-nightly.yml
@@ -40,6 +40,6 @@ jobs:
           JULIA_DEBUG: PythonCall
           JULIA_NUM_THREADS: '2'
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v5
+      - uses: codecov/codecov-action@v6
         with:
           file: lcov.info
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a8180e9d..682acd4a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -76,7 +76,7 @@ jobs:
         uses: julia-actions/julia-processcoverage@v1
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
@@ -160,6 +160,6 @@ jobs:
           PYTHON_JULIACALL_PROJECT: ${{ env.MANUAL_TEST_PROJECT }}
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}