diff --git a/composer.json b/composer.json
index 1b826a2..17e726e 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
         "league/openapi-psr7-validator": "^0.17",
         "phpunit/phpunit": "^8.5",
         "psy/psysh": "@stable",
-        "wiremock-php/wiremock-php": "^2.32"
+        "wiremock-php/wiremock-php": "^2.33"
     },
     "suggest": {
         "markstory/asset_compress": "An asset compression plugin which provides file concatenation and a flexible filter system for preprocessing and minification.",
diff --git a/tests/Helper/WireMockTestTrait.php b/tests/Helper/WireMockTestTrait.php
index 7d47b49..41aea61 100644
--- a/tests/Helper/WireMockTestTrait.php
+++ b/tests/Helper/WireMockTestTrait.php
@@ -76,7 +76,7 @@ trait WireMockTestTrait
         $headers = $stub->getRequest()->getHeaders();
         if (is_array($headers)) {
             foreach ($headers as $header => $rule) {
-                $validator = $validator->withHeader($header, ValueMatchingStrategy::fromArray($rule));
+                $validator = $validator->withHeader($header, $rule);
             }
         }