diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 9fa3295..79bfb3f 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -7,11 +7,8 @@ jobs:
 
     strategy:
       matrix:
-        os: ['ubuntu-20.04', 'ubuntu-22.04']
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11']
-        exclude:
-          - os: 'ubuntu-22.04'
-            python-version: '3.6'
+        os: ['ubuntu-22.04']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
     runs-on: ${{ matrix.os }}