Updates

Dockerfile

@@ -1,4 +1,4 @@
-FROM phpdockerio/php74-cli
+FROM phpdockerio/php80-cli
 MAINTAINER https://phpdocker.io
 
 WORKDIR /workdir

composer.json

@@ -8,15 +8,15 @@
   },
   "license": "MIT",
   "require":  {
-    "ext-json":          "*",
-    "php":               "^7.4",
-    "ext-curl":          "*",
-    "guzzlehttp/guzzle": "^6.3",
+    "php": "^8.0",
+    "ext-json": "*",
+    "ext-curl": "*",
+    "guzzlehttp/guzzle": "^7.3",
     "symfony/console":   "^5.0"
   },
   "require-dev": {
     "phpunit/phpunit": "^9.0",
-    "infection/infection": "^0.21.0",
+    "infection/infection": "^0.24.0",
     "symfony/var-dumper": "^5.0",
     "phpstan/phpstan": "^0.12.0"
   }