diff --git a/composer.json b/composer.json
index c21bb92..d9ef450 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "symfony/console": "^5.1 || ^6.0 || ^7.0"
     },
     "require-dev": {
-        "infection/infection": "^0.29",
+        "infection/infection": "^0.26",
         "phpstan/phpstan": "^1.9",
         "phpunit/phpunit": "^9.5",
         "rregeer/phpunit-coverage-check": "^0.3.1",
diff --git a/docker/dev/php/Dockerfile b/docker/dev/php/Dockerfile
index bf1c1cd..7668b39 100644
--- a/docker/dev/php/Dockerfile
+++ b/docker/dev/php/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.3-cli-alpine3.19
+FROM php:8.0-cli-alpine3.16
 
 ARG HOST_USER_ID