diff --git a/.gitlab/ci/analysis/php-cs-fixer.yml b/.gitlab/ci/analysis/php-cs-fixer.yml
index cafcdf2f021302e2b7febc4bae10576542ca9bb0..ec50fb2cc0cee8f4091e6cec13f2f425b5c10561 100644
--- a/.gitlab/ci/analysis/php-cs-fixer.yml
+++ b/.gitlab/ci/analysis/php-cs-fixer.yml
@@ -2,7 +2,7 @@
 
 php-cs-fixer:
   stage: analysis
-  image: php:8.2-cli-alpine
+  image: php:8.1-cli-alpine
   rules:
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
       when: on_success
diff --git a/.gitlab/ci/analysis/phpcpd.yml b/.gitlab/ci/analysis/phpcpd.yml
index 30f4c023f799fa4731c7dae344ef2f3c09d01c61..5ea49a05e0209daf6d3b4bdcc3ba8b01273ba579 100644
--- a/.gitlab/ci/analysis/phpcpd.yml
+++ b/.gitlab/ci/analysis/phpcpd.yml
@@ -2,7 +2,7 @@
 
 phpcpd:
   stage: analysis
-  image: php:cli-alpine
+  image: php:8.1-cli-alpine
   rules:
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
       when: on_success
diff --git a/.gitlab/ci/analysis/phpstan.yml b/.gitlab/ci/analysis/phpstan.yml
index 4f289a3a3860ce45bc4e41b829a13b127b044ccf..57791d367b0c0f970209528432ef7c0c22d087e0 100644
--- a/.gitlab/ci/analysis/phpstan.yml
+++ b/.gitlab/ci/analysis/phpstan.yml
@@ -2,7 +2,7 @@
 
 phpstan:
   stage: analysis
-  image: php:8.3-cli-alpine
+  image: php:8.1-cli-alpine
   rules:
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
       when: on_success
diff --git a/.gitlab/ci/build/phive.yml b/.gitlab/ci/build/phive.yml
index 9b6ab23b19a5552164d00ea276a403fa71fa0d1b..a29de9c784ecbf4cec105b0eaed0aa3cc9b50393 100644
--- a/.gitlab/ci/build/phive.yml
+++ b/.gitlab/ci/build/phive.yml
@@ -2,7 +2,7 @@
 
 phive:
   stage: build
-  image: php:cli-alpine
+  image: php:8.1-cli-alpine
   rules:
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
       when: on_success
diff --git a/.gitlab/ci/security/security-checker.yml b/.gitlab/ci/security/security-checker.yml
index 0ffd1d9b84acb5f9c95eec3c513096c7208bb1b5..f8ba4460c3e65d3093e94b7666a9e43f5870206e 100644
--- a/.gitlab/ci/security/security-checker.yml
+++ b/.gitlab/ci/security/security-checker.yml
@@ -2,7 +2,7 @@
 
 security-checker:
   stage: security
-  image: php:cli-alpine
+  image: php:8.1-cli-alpine
   rules:
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
       when: on_success
diff --git a/.gitlab/ci/test/phpunit.yml b/.gitlab/ci/test/phpunit.yml
index 55ae55d2f32a1fb5e4d60440dda09d5806fcfb52..fe41334239170ef769810df2805883ff1793ef6f 100644
--- a/.gitlab/ci/test/phpunit.yml
+++ b/.gitlab/ci/test/phpunit.yml
@@ -2,7 +2,7 @@
 
 phpunit:
   stage: test
-  image: php:8.2-cli-alpine
+  image: php:8.1-cli-alpine
   rules:
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
       when: on_success
diff --git a/composer.json b/composer.json
index 73e5e995d91d9f12c0132161b630465ebbfa19ff..ab3c13c6a6100e1fef7ac7c0eb00323a3ae881bd 100644
--- a/composer.json
+++ b/composer.json
@@ -43,7 +43,7 @@
         }
     },
     "require": {
-        "php": "^8.2",
+        "php": "^8.1",
         "composer-runtime-api": "^2.2",
         "mockery/mockery": "^1.5",
         "phpunit/phpunit": "^10.1",
diff --git a/composer.lock b/composer.lock
index 86a7c45f1cbb113ed0a2a510d4a0ca4febb46f2b..fcbb7fae1102183e90c447a4106171d65b8d4f0f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "4eaae753c03dca00f060c0bea5300a30",
+    "content-hash": "1c9f8b458d314a117c22ef9d749dc7c5",
     "packages": [
         {
             "name": "hamcrest/hamcrest-php",
@@ -1811,7 +1811,7 @@
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": {
-        "php": "^8.2",
+        "php": "^8.1",
         "composer-runtime-api": "^2.2"
     },
     "platform-dev": [],