diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 5b28c5c..91802f5 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -133,7 +133,7 @@ jobs:
         run: |
           RUST_LOG=warn cargo tarpaulin --workspace --timeout 120 --out xml --features testx --skip-clean --target-dir=target/coverage
       - name: Upload to codecov.io
-        uses: codecov/codecov-action@v3 # Make sure to use v3 because it allows tokenless upload
+        uses: codecov/codecov-action@v4 # Make sure to use v3 because it allows tokenless upload
 
   deploy_docs:
     needs: [build, test]