diff --git a/composer.json b/composer.json
index ee690fe4c..3c7a5a570 100644
--- a/composer.json
+++ b/composer.json
@@ -16,14 +16,12 @@
         "symfony/config": "^6.4",
         "symfony/console": "^6.4",
         "symfony/dotenv": "^6.4",
-        "symfony/debug-bundle": "^6.4",
         "symfony/dependency-injection": "^6.4",
         "symfony/doctrine-bridge": "^6.4",
         "symfony/error-handler": "^6.4",
         "symfony/event-dispatcher": "^6.4",
         "symfony/filesystem": "^6.4",
         "symfony/finder": "^6.4",
-        "symfony/flex": "^2.3",
         "symfony/form": "^6.4",
         "symfony/framework-bundle": "^6.4",
         "symfony/http-client": "^6.4",
@@ -48,7 +46,6 @@
         "symfony/twig-bundle": "^6.4",
         "symfony/validator": "^6.4",
         "symfony/web-link": "^6.4",
-        "symfony/web-profiler-bundle": "^6.4",
         "symfony/yaml": "^6.4",
 
         "twig/twig": "^3.6",
@@ -75,6 +72,11 @@
 
         "mapbender/openlayers6-es5": "^10"
     },
+    "require-dev": {
+        "symfony/debug-bundle": "^6.4",
+        "symfony/flex": "^2.3",
+        "symfony/web-profiler-bundle": "^6.4"
+    },
     "provide": {
         "mapbender/fom": "3.3",
         "mapbender/owsproxy": "3.3.99"