diff --git a/.github/workflows/on-push.yml b/.github/workflows/on-push.yml
index 95369f3..93d562d 100644
--- a/.github/workflows/on-push.yml
+++ b/.github/workflows/on-push.yml
@@ -23,19 +23,19 @@ jobs:
         uses: actions/cache@v2
         with:
           path: ~/conda_pkgs_dir
-          key: ubuntu-latest-3.9
+          key: ubuntu-latest-3.8
       - uses: conda-incubator/setup-miniconda@v2
         with:
           channels: default, conda-forge
           channel-priority: strict
           mamba-version: "*"
-          activate-environment: ubuntu-latest-3.9
+          activate-environment: ubuntu-latest-3.8
           auto-update-conda: false
-          python-version: 3.9
+          python-version: 3.8
           use-only-tar-bz2: true
       - name: Install dependencies
         run: |
-          make conda-env-update CONDA=mamba ENVIRONMENT=ubuntu-latest-3.9
+          make conda-env-update CONDA=mamba ENVIRONMENT=ubuntu-latest-3.8
       - name: Install package
         run: |
           python -m pip install --no-deps -e .
@@ -57,19 +57,19 @@ jobs:
         uses: actions/cache@v2
         with:
           path: ~/conda_pkgs_dir
-          key: ubuntu-latest-3.9
+          key: ubuntu-latest-3.8
       - uses: conda-incubator/setup-miniconda@v2
         with:
           channels: default, conda-forge
           channel-priority: strict
           mamba-version: "*"
-          activate-environment: ubuntu-latest-3.9
+          activate-environment: ubuntu-latest-3.8
           auto-update-conda: false
-          python-version: 3.9
+          python-version: 3.8
           use-only-tar-bz2: true
       - name: Install dependencies
         run: |
-          make conda-env-update CONDA=mamba ENVIRONMENT=ubuntu-latest-3.9
+          make conda-env-update CONDA=mamba ENVIRONMENT=ubuntu-latest-3.8
       - name: Install package
         run: |
           python -m pip install --no-deps -e .
diff --git a/setup.cfg b/setup.cfg
index 31ba03f..1db164c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -11,6 +11,7 @@ classifiers =
     Operating System :: OS Independent
     Programming Language :: Python
     Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Topic :: Scientific/Engineering
 long_description_content_type=text/markdown
@@ -18,7 +19,7 @@ long_description = file: README.md
 
 [options]
 packages = find:
-python_requires = >=3.9
+python_requires = >=3.8
 install_requires =
     attrs
     click