diff --git a/composer.json b/composer.json
index dee00a5..7896b29 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",
-        "php-http/psr7-integration-tests": "1.x-dev",
+        "php-http/psr7-integration-tests": "^1.3",
         "squizlabs/php_codesniffer": "^3.7",
         "vimeo/psalm": "^4.9|^5.2"
     },