diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c30ccfe..3a11d34 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,7 +56,7 @@ jobs:
     - name: Run Tests
       run: just test
     - name: Upload Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   # Check linting, formating, types, etc.
   lint: