diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7746521..d9c2cd0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -131,7 +131,7 @@ jobs:
       - name: cargo llvm-cov
         run: cargo llvm-cov --locked --all-features --lcov --output-path lcov.info
       - name: Upload to codecov.io
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true