diff --git a/composer.json b/composer.json
index 2b4176d..7e1082e 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
   },
   "require-dev": {
     "phpunit/phpunit": "^9.0",
-    "infection/infection": "^0.15"
+    "infection/infection": "~0.15"
   },
   "autoload": {
     "psr-4": {