diff --git a/.github/workflows/run-unit-tests.yml b/.github/workflows/run-unit-tests.yml
index 2c10142a..937fb1db 100644
--- a/.github/workflows/run-unit-tests.yml
+++ b/.github/workflows/run-unit-tests.yml
@@ -71,10 +71,11 @@ jobs:
           name: coverage_file
 
       - name: Upload python coverage report to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           directory: ./
           name: Python-codecov
           files: ./coverage.xml
           fail_ci_if_error: true
           verbose: true
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/pyproject.toml b/pyproject.toml
index 5813c3e7..9ff5aa27 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "jupyter-matlab-proxy"
-version = "0.12.0"
+version = "0.12.1"
 description = "MATLAB Integration for Jupyter"
 readme = "README.md"
 license = { file = "LICENSE.md" }