diff --git a/.github/workflows/develop.yml b/.github/workflows/develop.yml
index e0d4018d..a77dae02 100644
--- a/.github/workflows/develop.yml
+++ b/.github/workflows/develop.yml
@@ -27,10 +27,13 @@ jobs:
             php-version: ${{ env.PRIMARY_PHP_VERSION }}
             tools: composer
 
+      - name: Validate dependency file
+        run: composer validate --strict
+
       - name: Install dependencies
         run: composer run install:ci
 
-      - name: Run PHP lint (phpcs, php-cs-fixer, rector) 
+      - name: Run PHP lint (phpcs, php-cs-fixer, rector)
         run: composer run lint:all
 
       - name: symfony-insight
@@ -46,7 +49,7 @@ jobs:
 
     strategy:
       matrix:
-        php-version: [8.1, 8.2, 8.3, 8.4] 
+        php-version: [8.1, 8.2, 8.3, 8.4]
 
     steps:
       - name: Checkout repository
@@ -64,12 +67,12 @@ jobs:
 
       - name: Run unit tests
         run: composer run test:unit
-  
+
   doc:
     name: Generate Documentation
     runs-on: ubuntu-latest
     needs: [ tests ]
-    
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -77,7 +80,7 @@ jobs:
       - uses: ./.github/actions/doc
         with:
           default-runtime-version: ${{ env.PRIMARY_PHP_VERSION }}
-      
+
   coverage:
     name: Code Coverage Report
     runs-on: ubuntu-latest
@@ -96,7 +99,7 @@ jobs:
     name: Build Project
     runs-on: ubuntu-latest
     needs: [ coverage, quality ]
-    # Deactivated as not necessary for PHP 
+    # Deactivated as not necessary for PHP
     if: false
     steps:
       - name: Checkout repository
diff --git a/composer.json b/composer.json
index fa0167e8..ce259a24 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,5 @@
 {
-    "_comment": "AUTO-GENERATED FILE - DO NOT EDIT",
-    "_generator": "Generated by OpenAPI Generator",
-    "_warning": "Manual changes will be overwritten, please update `templates/php/libraries/psr-18/composer.mustache` file and regenerate files",
+    "_comment": "AUTO-GENERATED FILE - DO NOT EDIT. Manual changes will be overwritten, please update `templates/php/libraries/psr-18/composer.mustache` file and regenerate files",
     "name": "upsun/upsun-sdk-php",
     "type": "library",
     "description": "The official Upsun SDK for PHP",
diff --git a/templates/php/libraries/psr-18/composer.mustache b/templates/php/libraries/psr-18/composer.mustache
index 80e071e2..5e01432e 100644
--- a/templates/php/libraries/psr-18/composer.mustache
+++ b/templates/php/libraries/psr-18/composer.mustache
@@ -1,7 +1,5 @@
 {
-    "_comment": "AUTO-GENERATED FILE - DO NOT EDIT",
-    "_generator": "Generated by OpenAPI Generator",
-    "_warning": "Manual changes will be overwritten, please update `templates/php/libraries/psr-18/composer.mustache` file and regenerate files",
+    "_comment": "AUTO-GENERATED FILE - DO NOT EDIT. Manual changes will be overwritten, please update `templates/php/libraries/psr-18/composer.mustache` file and regenerate files",
     {{#composerPackageName}}
     "name": "{{{.}}}",
     {{/composerPackageName}}