diff --git a/composer.lock b/composer.lock
index 0ed274e6..6f268c20 100644
--- a/composer.lock
+++ b/composer.lock
@@ -5745,21 +5745,21 @@
         },
         {
             "name": "phpspec/prophecy",
-            "version": "v1.15.0",
+            "version": "v1.16.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "bbcd7380b0ebf3961ee21409db7b38bc31d69a13"
+                "reference": "be8cac52a0827776ff9ccda8c381ac5b71aeb359"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/bbcd7380b0ebf3961ee21409db7b38bc31d69a13",
-                "reference": "bbcd7380b0ebf3961ee21409db7b38bc31d69a13",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/be8cac52a0827776ff9ccda8c381ac5b71aeb359",
+                "reference": "be8cac52a0827776ff9ccda8c381ac5b71aeb359",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.2",
-                "php": "^7.2 || ~8.0, <8.2",
+                "php": "^7.2 || 8.0.* || 8.1.* || 8.2.*",
                 "phpdocumentor/reflection-docblock": "^5.2",
                 "sebastian/comparator": "^3.0 || ^4.0",
                 "sebastian/recursion-context": "^3.0 || ^4.0"
@@ -5806,9 +5806,9 @@
             ],
             "support": {
                 "issues": "https://github.com/phpspec/prophecy/issues",
-                "source": "https://github.com/phpspec/prophecy/tree/v1.15.0"
+                "source": "https://github.com/phpspec/prophecy/tree/v1.16.0"
             },
-            "time": "2021-12-08T12:19:24+00:00"
+            "time": "2022-11-29T15:06:56+00:00"
         },
         {
             "name": "phpstan/phpdoc-parser",
@@ -6233,16 +6233,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "9.5.11",
+            "version": "9.5.14",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "2406855036db1102126125537adb1406f7242fdd"
+                "reference": "1883687169c017d6ae37c58883ca3994cfc34189"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/2406855036db1102126125537adb1406f7242fdd",
-                "reference": "2406855036db1102126125537adb1406f7242fdd",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/1883687169c017d6ae37c58883ca3994cfc34189",
+                "reference": "1883687169c017d6ae37c58883ca3994cfc34189",
                 "shasum": ""
             },
             "require": {
@@ -6293,11 +6293,11 @@
                 }
             },
             "autoload": {
-                "classmap": [
-                    "src/"
-                ],
                 "files": [
                     "src/Framework/Assert/Functions.php"
+                ],
+                "classmap": [
+                    "src/"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -6320,7 +6320,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.11"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.14"
             },
             "funding": [
                 {
@@ -6332,7 +6332,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-12-25T07:07:57+00:00"
+            "time": "2022-02-18T12:54:07+00:00"
         },
         {
             "name": "sebastian/cli-parser",
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 57f96cd0..7ca2f867 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -38,7 +38,7 @@ COPY --from=themes /app/public/assets /app/public/assets/
 RUN find /app/storage/ -type f -not -name VERSION -exec rm {} \;
 
 # Build the PHP/Nginx container
-FROM php:8-fpm-alpine
+FROM php:8.1-fpm-alpine
 WORKDIR /var/www
 RUN apk add --no-cache icu-dev nginx && \
     docker-php-ext-install intl pdo_mysql && \
diff --git a/docker/dev/Dockerfile b/docker/dev/Dockerfile
index ebb3ccca..fe88fa2c 100644
--- a/docker/dev/Dockerfile
+++ b/docker/dev/Dockerfile
@@ -1,5 +1,5 @@
 # Engelsystem PHP FPM/Nginx development image including Xdebug
-FROM php:8-fpm-alpine AS es_base
+FROM php:8.1-fpm-alpine AS es_base
 WORKDIR /var/www
 RUN apk add --no-cache icu-dev $PHPIZE_DEPS && \
     pecl install pcov xdebug && \