diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index ab2746a..9569ae8 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -10,7 +10,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: oven-sh/setup-bun@v1
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.bun
           key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index d79916d..33e1699 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -12,16 +12,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: oven-sh/setup-bun@v1
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.bun
           key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
           restore-keys: |
             ${{ runner.os }}-bun-${{ github.ref }}
       - run: bun install
-      - run: bun test --coverage
-      #
-      # - name: Upload coverage to Codecov
-      #   uses: codecov/codecov-action@v3
-      #   with:
-      #     directory: ./coverage
+      - run: bun test --coverage --coverage-reporter=lcov
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }} # required