diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 17176ef..d8bc5e2 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,6 +14,9 @@ jobs:
     strategy:
       matrix:
         php-version:
+          - '7.2'
+          - '7.4'
+          - '8.0'
           - '8.1'
           - '8.2'
           - '8.3'
@@ -30,13 +33,10 @@ jobs:
       - name: Install dependencies
         run: composer install --prefer-dist --no-progress
 
-      - name: Install specific PHPUnit version
-        run: composer require "phpunit/phpunit:^9.6" --dev
-
       - name: Run tests
         run: composer test
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v3
         env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
\ No newline at end of file
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/README.md b/README.md
index c7b8211..3689763 100644
--- a/README.md
+++ b/README.md
@@ -19,12 +19,10 @@ To set up a custom WordPress build package to use this as a custom installer, ad
 ```json
 "type": "wordpress-core",
 "require": {
-	"roots/wordpress-core-installer": "^2.0"
+	"roots/wordpress-core-installer": "^3.0"
 }
 ```
 
-If you need to maintain support for PHP versions lower than 8.1 (not recommended!), use `^1.0` as your version constraint in the above.
-
 By default, this package will install a `wordpress-core` type package in the `wordpress` directory. To change this you can add the following to either your custom WordPress core type package or the root composer package:
 
 ```json
diff --git a/composer.json b/composer.json
index 11d3619..538e812 100644
--- a/composer.json
+++ b/composer.json
@@ -33,17 +33,17 @@
 	},
 	"require": {
 		"composer-plugin-api": "^1.0 || ^2.0",
-		"php": ">=8.1"
+		"php": ">=7.2.24"
 	},
 	"require-dev": {
 		"composer/composer": "^1.0 || ^2.0",
-		"phpunit/phpunit": "^9.6"
+		"phpunit/phpunit": "^8.5"
 	},
 	"conflict": {
 		"composer/installers": "<1.0.6"
 	},
 	"replace": {
- 		"johnpbloch/wordpress-core-installer":"*"
+		"johnpbloch/wordpress-core-installer": "*"
 	},
 	"scripts": {
 		"test:phpunit": "phpunit",