diff --git a/.github/workflows/cs.yaml b/.github/workflows/cs.yaml
index 718d8c2..a59782b 100644
--- a/.github/workflows/cs.yaml
+++ b/.github/workflows/cs.yaml
@@ -17,10 +17,13 @@ jobs:
   coding-standards:
     runs-on: ubuntu-latest
 
+    env:
+        PHP_CS_FIXER_IGNORE_ENV: '1'
+
     strategy:
       matrix:
         operating-system: [ ubuntu-latest ]
-        php-version: [ '8.2' ]
+        php-version: [ '8.3' ]
         check:
           - makefile-target: 'cs-lint'
             name: 'CS'
diff --git a/.github/workflows/mutation-testing.yaml b/.github/workflows/mutation-testing.yaml
index d433948..78a8f8c 100644
--- a/.github/workflows/mutation-testing.yaml
+++ b/.github/workflows/mutation-testing.yaml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ ubuntu-latest ]
-        php-version: [ '8.2' ]
+        php-version: [ '8.3' ]
         coverage-driver: [ pcov ]
 
     name: Mutation testing with PHP ${{ matrix.php-version }} (${{ matrix.coverage-driver }})
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 9f32626..c63efdd 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -21,14 +21,11 @@ jobs:
 
     strategy:
       matrix:
-        php-version: [ '8.2', '8.3', '8.4', '8.5' ]
+        php-version: [ '8.3', '8.4', '8.5' ]
         coverage-driver: [ pcov ]
         symfony-require:
           - '6.4.*'
           - '7.4.*'
-        exclude:
-          - php-version: '8.1'
-            symfony-require: '^7'
 
     name: Unit tests on PHP ${{ matrix.php-version }} with Symfony ${{ matrix.symfony-require }} (${{ matrix.coverage-driver }})
 
@@ -77,7 +74,7 @@ jobs:
 
     strategy:
       matrix:
-        php-version: [ '8.2', '8.3', '8.4' ]  # TODO: add PHP 8.5
+        php-version: ['8.3', '8.4' ]  # TODO: add PHP 8.5
         coverage-driver: [ pcov ]
 
     name: End-to-end with PHP ${{ matrix.php-version }} (${{ matrix.coverage-driver }})
diff --git a/composer.json b/composer.json
index 3940108..672f72f 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
         }
     },
     "require": {
-        "php": "^8.2",
+        "php": "^8.3",
         "infection/abstract-testframework-adapter": "^0.5.0",
         "infection/include-interceptor": "^0.2.0",
         "symfony/filesystem": "^6.4 || ^7.4",
diff --git a/composer.lock b/composer.lock
index 5e236fb..997c981 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": "24a42db2450ea3ec3f8118d8282d3330",
+    "content-hash": "549bacae9b4c035736602fd4cf877dd7",
     "packages": [
         {
             "name": "infection/abstract-testframework-adapter",
@@ -4126,8 +4126,8 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "^8.2"
+        "php": "^8.3"
     },
     "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }