diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 210461b..e30defc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,14 +6,14 @@ on:
 
 jobs:
   deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     container:
-      image: python:2.7.18-buster
+      image: python:2.7.18-slim-stretch
     steps:
       - uses: actions/checkout@v3
       - name: Install dependencies
         run: |
-          sudo apt-get install -y libldap2-dev libpython2-dev libc6-dev libsasl2-dev
+          apt-get install -y libldap2-dev libpython2-dev libc6-dev libsasl2-dev
           python -m pip install --upgrade pip
           pip install pytest-cov mock coverage unittest2 python-ldap==3.3.1
       - name: Run coverage