diff --git a/composer.json b/composer.json
index d94d4d4..04b4713 100644
--- a/composer.json
+++ b/composer.json
@@ -21,9 +21,9 @@
         "psr/container": "^1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.3",
+        "phpunit/phpunit": "^9.5",
         "squizlabs/php_codesniffer": "^3.5",
-        "vimeo/psalm": "^3.14"
+        "vimeo/psalm": "^4.3"
     },
     "provide": {
         "psr/container-implementation": "1.0"