diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index d02e00c..6967e5c 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -2,13 +2,15 @@ name: PHP type checking and unit testing
 
 on:
   push:
+    branches:
+      - 'master'
   pull_request:
 
 jobs:
   build:
-    strategy:      
+    strategy:
       matrix:
-        php-versions: ["7.2", "7.3", "7.4"]
+        php-versions: ["7.2", "7.3", "7.4", "8.0"]
         symfony-versions: ["~3.0", "~4.0", "~5.0"]
     runs-on: ubuntu-latest
 
diff --git a/composer.json b/composer.json
index 534e76a..f57b0cf 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
-        "php": "^7.2",
+        "php": "^7.2|^8.0",
         "symfony/console": "~3.0|~4.0|~5.0",
         "symfony/dependency-injection": "~3.0|~4.0|~5.0",
         "symfony/config": "~3.0|~4.0|~5.0",