diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index a8b3075..f0fb9bd 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -6,11 +6,6 @@ jobs:
   build:
     strategy:
       matrix:
-        os: ["ubuntu-latest"]
-        python-version:
-        - "3.8" # minimum required
-        - "3.12" # latest
-        - "3.13-dev" # next
         include:
         - python-version: 3.8
           os: windows-2022
@@ -24,7 +19,6 @@ jobs:
     - uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
-        cache: poetry
     - run: poetry env use $(which python)
     - run: poetry install
     - run: poetry run ruff format --check