diff --git a/.gitattributes b/.gitattributes
index 974f175..37e0ce4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3,7 +3,6 @@
 
 # Exclude unused files
 # see: https://redd.it/2jzp6k
-/tests              export-ignore
 /.tmp               export-ignore
 /.codeclimate.yml   export-ignore
 /.coveralls.yml     export-ignore
@@ -13,7 +12,7 @@
 /.gitignore         export-ignore
 /CODE_OF_CONDUCT.md export-ignore
 /CONTRIBUTING.md    export-ignore
+/MAINTAINERS.md     export-ignore
 /README.md          export-ignore
 /phpcs.xml          export-ignore
 /phpstan.neon.dist  export-ignore
-/phpunit.xml.dist   export-ignore
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3bb1724..7e8ec2f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,6 +15,8 @@ jobs:
         include:
           - php: 8.2
             analysis: true
+          - php: nightly
+            experimental: true
 
     steps:
       - name: Checkout code
diff --git a/composer.json b/composer.json
index 7236e3d..d9343c7 100644
--- a/composer.json
+++ b/composer.json
@@ -72,5 +72,11 @@
   },
   "config": {
     "sort-packages": true
+  },
+  "archive": {
+      "exclude": [
+          "/tests",
+          "/phpunit.xml.dist"
+      ]
   }
 }