diff --git a/.gitattributes b/.gitattributes
index cb445a2..6c142c1 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,5 @@
+/.gitattributes export-ignore
+/.gitignore export-ignore
 /.github export-ignore
 /tests export-ignore
 /phpunit.xml.dist export-ignore
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index af8a5ad..34697f5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,5 +1,8 @@
 name: tests
 
+permissions:
+  contents: read
+
 on:
   push:
   pull_request:
@@ -14,13 +17,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [7.2, 7.3, 7.4, 8.0]
+        php: [7.2, 7.3, 7.4, 8.0, 8.1]
 
     name: php v${{ matrix.php }}
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2