diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c363a00..23d2b2c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,7 +2,7 @@ name: Tests Execution
 on:
   workflow_dispatch:
   pull_request:
-    types: [opened, reopened]
+    types: [opened, reopened, synchronize]
     paths-ignore:
       - '**.md'
       - 'docs/**'
@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        php: [8.3, 8.2, 8.1, 8.0, 7.4]
+        php: [8.5, 8.4, 8.3, 8.2, 8.1, 8.0, 7.4]
 
     name: ${{ matrix.os }} - PHP${{ matrix.php }}
 
@@ -32,8 +32,8 @@ jobs:
           extensions: dom, curl, libxml, mbstring, zip, bcmath, intl
           coverage: xdebug
 
-      - name: Install composer
-        run: composer install --no-interaction --prefer-dist
+      - name: Update composer
+        run: composer update --prefer-stable --no-interaction --prefer-dist
 
       - name: Execute tests on Linux with cover
         if: ${{ matrix.os == 'ubuntu-latest' && matrix.php == '8.3' }}
diff --git a/.github/workflows/test_macos.yml b/.github/workflows/test_macos.yml
index 873a526..40a304f 100644
--- a/.github/workflows/test_macos.yml
+++ b/.github/workflows/test_macos.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [8.3, 8.2, 8.1, 8.0, 7.4]
+        php: [8.5, 8.4, 8.3, 8.2, 8.1, 8.0, 7.4]
 
     name: macos-latest - PHP${{ matrix.php }}
 
@@ -26,8 +26,8 @@ jobs:
           extensions: dom, curl, libxml, mbstring, zip, bcmath, intl
           coverage: none
 
-      - name: Install composer
-        run: composer install --no-interaction --prefer-dist
+      - name: Update composer
+        run: composer update --prefer-stable --no-interaction --prefer-dist
 
       - name: Execute tests on MacOs
         run: sudo vendor/bin/phpunit --exclude MacOsFailures --testdox
diff --git a/.github/workflows/test_ubuntu.yml b/.github/workflows/test_ubuntu.yml
index 244902f..850462a 100644
--- a/.github/workflows/test_ubuntu.yml
+++ b/.github/workflows/test_ubuntu.yml
@@ -26,8 +26,8 @@ jobs:
           extensions: dom, curl, libxml, mbstring, zip, bcmath, intl
           coverage: none
 
-      - name: Install composer
-        run: composer install --no-interaction --prefer-dist
+      - name: Update composer
+        run: composer update --prefer-stable --no-interaction --prefer-dist
 
       - name: Execute tests on Linux
         run: sudo vendor/bin/phpunit --testdox
diff --git a/.github/workflows/test_win.yml b/.github/workflows/test_win.yml
index 8bd4700..db93179 100644
--- a/.github/workflows/test_win.yml
+++ b/.github/workflows/test_win.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [8.3, 8.2, 8.1, 8.0, 7.4]
+        php: [8.5, 8.4, 8.3, 8.2, 8.1, 8.0, 7.4]
 
     name: windows-latest - PHP${{ matrix.php }}
 
@@ -26,7 +26,7 @@ jobs:
           extensions: dom, curl, libxml, mbstring, zip, bcmath, intl
           coverage: none
 
-      - name: Install composer
+      - name: Update composer
         run: composer install --no-interaction --prefer-dist
 
       - name: Execute tests on Windows
diff --git a/composer.json b/composer.json
index f384b25..74bf01f 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
         "php": ">=7.4"
     },
     "require-dev": {
-        "phpunit/phpunit": ">=9.6",
+        "phpunit/phpunit": "9.6.*",
         "phpstan/phpstan": ">=1.10",
         "vimeo/psalm": ">=5",
         "squizlabs/php_codesniffer": "*"
diff --git a/src/DiffCodeMultiRunner.php b/src/DiffCodeMultiRunner.php
index ee41b63..a4597e6 100644
--- a/src/DiffCodeMultiRunner.php
+++ b/src/DiffCodeMultiRunner.php
@@ -32,7 +32,7 @@ final class DiffCodeMultiRunner extends MultiRunner
     public function __construct(
         int $maxNumberParallelProcesses,
         ?string $baseFolder = null,
-        OsCommandsWrapper $osCommandsWrapper = null
+        ?OsCommandsWrapper $osCommandsWrapper = null
     ) {
         parent::__construct($maxNumberParallelProcesses, $osCommandsWrapper);