diff --git a/.magento.app.yaml b/.magento.app.yaml
index 4165f57b0..de0f12c36 100644
--- a/.magento.app.yaml
+++ b/.magento.app.yaml
@@ -77,7 +77,7 @@ hooks:
     # We run build hooks before your application has been packaged.
     build: |
         set -e
-        composer install
+        composer install --no-dev
         php ./vendor/bin/ece-tools run scenario/build/generate.xml
         php ./vendor/bin/ece-tools run scenario/build/transfer.xml
     # We run deploy hook after your application has been deployed and started.