diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index dac565d..4367230 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -9,7 +9,7 @@ jobs:
       max-parallel: 4
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.11]
     steps:
     - name: Git config
       run: git config --global core.autocrlf input