diff --git a/.github/workflows/test-nightly.yml b/.github/workflows/test-nightly.yml
index f5ea2ce..047c254 100644
--- a/.github/workflows/test-nightly.yml
+++ b/.github/workflows/test-nightly.yml
@@ -10,6 +10,9 @@ jobs:
     strategy:
       matrix:
         php: ['7.4']
+        include:
+          - php: '8.0'
+            experimental: true
       fail-fast: false
     name: WP nightly / PHP ${{ matrix.php }}
     runs-on: ubuntu-18.04
@@ -46,7 +49,7 @@ jobs:
 
     - name: Install PHP Dependencies
       run: |
-        composer install --prefer-dist --no-progress --no-suggest --no-interaction
+        composer install --prefer-dist --no-progress --no-suggest --no-interaction --ignore-platform-reqs
         composer require --dev --update-with-dependencies --prefer-dist roots/wordpress="dev-nightly" wp-phpunit/wp-phpunit="dev-master"
 
     - name: Run the tests
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 325527c..a2ee7b7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,6 +13,9 @@ jobs:
     strategy:
       matrix:
         php: ['7.4']
+        include:
+          - php: '8.0'
+            experimental: true
       fail-fast: false
     name: WP 5.9 / PHP ${{ matrix.php }}
     runs-on: ubuntu-18.04
@@ -49,7 +52,7 @@ jobs:
 
     - name: Install PHP Dependencies
       run: |
-        composer install --prefer-dist --no-progress --no-suggest --no-interaction
+        composer install --prefer-dist --no-progress --no-suggest --no-interaction --ignore-platform-reqs
 
     - name: Run the tests
       run: |
diff --git a/composer.json b/composer.json
index 7660a1b..7ebd60e 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
   "description": "Authorship",
   "license": "GPL-3.0-or-later",
   "require": {
-    "php": "~7.2",
+    "php": ">=7.2",
     "composer/installers": "~1.0",
     "humanmade/asset-loader": "^0.5.0"
   },