diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 737989c5..78bb59dd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,10 +2,10 @@ name: pyelftools-tests
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   build:
@@ -13,12 +13,11 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.8, '3.11', '3.12']
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
         os: [ubuntu-latest]
 
     steps:
-
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with: