diff --git a/.github/workflows/tests-ubuntu.yml b/.github/workflows/tests-ubuntu.yml
index f725acd..f9aca2c 100644
--- a/.github/workflows/tests-ubuntu.yml
+++ b/.github/workflows/tests-ubuntu.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
+        php: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
 
     steps:
       - uses: actions/checkout@v2
diff --git a/.github/workflows/tests-windows.yml b/.github/workflows/tests-windows.yml
index 6e1cec0..4ea7996 100644
--- a/.github/workflows/tests-windows.yml
+++ b/.github/workflows/tests-windows.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
+        php: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
 
     steps:
       - uses: actions/checkout@v2
diff --git a/composer.json b/composer.json
index 54eaf92..5613ba1 100644
--- a/composer.json
+++ b/composer.json
@@ -6,12 +6,12 @@
     "homepage": "https://typo3.org/",
     "keywords": ["php", "phar", "stream-wrapper", "security"],
     "require": {
-        "php": "^7.4 || ^8.0",
+        "php": "^7.1 || ^8.0",
         "ext-json": "*"
     },
     "require-dev": {
         "ext-xdebug": "*",
-        "phpunit/phpunit": "^9"
+        "phpunit/phpunit": "^7 || ^8 || ^9"
     },
     "suggest": {
         "ext-fileinfo": "For PHP builtin file type guessing, otherwise uses internal processing"