diff --git a/.github/workflows/ci_test.yml b/.github/workflows/ci_test.yml
index 01d965e..a9fd30c 100644
--- a/.github/workflows/ci_test.yml
+++ b/.github/workflows/ci_test.yml
@@ -26,7 +26,8 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           python -m pip install --upgrade pytest
-          python -m pip install flake8 pytest pytest-cov coveralls
+          python -m pip install flake8 pytest pytest-cov
+          python -m pip install codecov
           if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
           if [ -f test_requirements.txt ]; then pip install -r test_requirements.txt; fi
           python -m pip install .
@@ -40,11 +41,18 @@ jobs:
         run: |
           pytest --cov=hierarc
 
-      - name: Coveralls
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v3
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          coveralls --service=github
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          files: ./coverage.xml
+
+#      - name: Coveralls
+#        env:
+#          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+#        run: |
+#          coveralls --service=github
 
       # from this source for coveralls: https://github.com/marketplace/actions/coveralls-github-action
       #- uses: actions/checkout@v1
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 0000000..55e5016
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,6 @@
+comment:                  # this is a top-level key
+  layout: " diff, flags, files"
+  behavior: default
+  require_changes: false  # if true: only post the comment if coverage changes
+  require_base: false        # [true :: must have a base report to post]
+  require_head: true       # [true :: must have a head report to post]