diff --git a/.github/workflows/grumphp.yml b/.github/workflows/grumphp.yml
index 49632ba7..252b7719 100644
--- a/.github/workflows/grumphp.yml
+++ b/.github/workflows/grumphp.yml
@@ -7,7 +7,7 @@ jobs:
         strategy:
             matrix:
                 operating-system: [ubuntu-latest]
-                php-versions: ['7.3', '7.4', '8.0']
+                php-versions: ['7.4', '8.0']
                 composer-options: ['', '--prefer-lowest']
             fail-fast: false
         name: PHP ${{ matrix.php-versions }} @ ${{ matrix.operating-system }} with ${{ matrix.composer-options }}
diff --git a/composer.json b/composer.json
index 2635a1ad..ba0138b5 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": "^7.3 || ^8.0",
+        "php": "^7.4 || ^8.0",
         "ext-dom": "*",
         "ext-xml": "*",
         "psr/event-dispatcher": "^1.0",