diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c570713..9ae8e0f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,7 +39,7 @@ jobs:
 
     - name: Upload coverage to codecov
       if: ${{ matrix.python-version == '3.7' && matrix.runs-on == 'ubuntu-latest'}}
-      uses: codecov/codecov-action@v2.0.2
+      uses: codecov/codecov-action@v2.0.3
       with:
         #token: ${{ secrets.CODECOV_TOKEN }}
         file: ./coverage.xml
diff --git a/setup.cfg b/setup.cfg
index d25442b..2853e28 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -24,6 +24,7 @@ classifiers =
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
     Topic :: Scientific/Engineering
 project_urls =
     Documentation = https://neos.readthedocs.io/