diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 8311e74..6bbbc08 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['7.2', '7.3', '7.4', '8.0', '8.1']
+        php: ['7.0', '7.1', '7.2', '7.3', '7.4', '8.0']
         os: ['ubuntu-latest']
 
     steps:
diff --git a/doc/02-Installation.md b/doc/02-Installation.md
index e5a3b4e..aebcee5 100644
--- a/doc/02-Installation.md
+++ b/doc/02-Installation.md
@@ -5,7 +5,7 @@ Requirements
 ------------
 
 * Icinga Web 2 (>= 2.9)
-* PHP (>= 7.2)
+* PHP (>= 7.0)
 * Icinga Web 2 libraries:
   * [Icinga PHP Library (ipl)](https://github.com/Icinga/icinga-php-library) (>= 0.8)
   * [Icinga PHP Thirdparty](https://github.com/Icinga/icinga-php-thirdparty) (>= 0.11)