diff --git a/composer.json b/composer.json
index 04d046f..d2b13c6 100644
--- a/composer.json
+++ b/composer.json
@@ -28,15 +28,15 @@
         "laminas/laminas-http": ">=2.2"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "3.51.0",
+        "friendsofphp/php-cs-fixer": "3.64.0",
         "guzzlehttp/guzzle": "^7.8.1",
         "laminas/laminas-uri": ">=2.2",
         "pear/http_request2": "2.6.0",
         "phpmd/phpmd": "2.15.0",
-        "phpstan/phpstan": "1.10.59",
-        "phpunit/phpunit": "10.5.11",
+        "phpstan/phpstan": "1.12.7",
+        "phpunit/phpunit": "10.5.36",
         "phing/phing": "3.0",
-        "squizlabs/php_codesniffer": "3.9.0"
+        "squizlabs/php_codesniffer": "3.10.3"
     },
     "autoload": {
         "psr-0": {
diff --git a/src/VuFindHttp/HttpService.php b/src/VuFindHttp/HttpService.php
index 1aef0e8..27c0568 100644
--- a/src/VuFindHttp/HttpService.php
+++ b/src/VuFindHttp/HttpService.php
@@ -31,6 +31,7 @@
 
 use function get_class;
 use function in_array;
+use function sprintf;
 use function strlen;
 
 /**
diff --git a/tests/unit-tests/src/VuFindTest/HttpServiceTest.php b/tests/unit-tests/src/VuFindTest/HttpServiceTest.php
index fbfa760..8db8500 100644
--- a/tests/unit-tests/src/VuFindTest/HttpServiceTest.php
+++ b/tests/unit-tests/src/VuFindTest/HttpServiceTest.php
@@ -31,6 +31,8 @@
 
 use VuFindHttp\HttpService as Service;
 
+use function sprintf;
+
 /**
  * Proxy service unit test.
  *
diff --git a/tests/vufind.php-cs-fixer.php b/tests/vufind.php-cs-fixer.php
index 25898bc..361906b 100644
--- a/tests/vufind.php-cs-fixer.php
+++ b/tests/vufind.php-cs-fixer.php
@@ -5,8 +5,8 @@
     ->in(__DIR__ . '/../src');
 
 $rules = [
-    '@PHP80Migration' => true,
-    '@PHPUnit84Migration:risky' => true,
+    '@PHP81Migration' => true,
+    '@PHPUnit100Migration:risky' => true,
     '@PSR12' => true,
     'align_multiline_comment' => true,
     'binary_operator_spaces' => [
@@ -44,8 +44,8 @@
     'no_php4_constructor' => true,
     'no_singleline_whitespace_before_semicolons' => true,
     'no_spaces_around_offset' => true,
+    'no_unneeded_braces' => true,
     'no_unneeded_control_parentheses' => true,
-    'no_unneeded_curly_braces' => true,
     'no_unneeded_final_method' => true,
     'no_unreachable_default_argument_value' => true,
     'no_unused_imports' => true,
@@ -75,4 +75,5 @@
 return $config->setCacheFile($cacheDir . '/.code.cache')
     ->setRiskyAllowed(true)
     ->setRules($rules)
-    ->setFinder($finder);
+    ->setFinder($finder)
+    ->setParallelConfig(\PhpCsFixer\Runner\Parallel\ParallelConfigFactory::detect());