diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index b3c4c35..82992aa 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -48,7 +48,7 @@ jobs:
         run: composer validate
 
       - name: Install dependencies
-        run: composer install --prefer-dist --no-progress --no-suggest
+        run: composer install --prefer-dist --no-progress --no-suggest --no-dev
 
       - name: unit tests
         run: |
@@ -60,4 +60,4 @@ jobs:
         run: |
           cp -r .github/workflows/config/integration/* dev/tests/integration/
           cd dev/tests/integration
-          ../../../vendor/bin/phpunit -c phpunit.xml
\ No newline at end of file
+          ../../../vendor/bin/phpunit -c phpunit.xml