diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6be552625ccc92a3e39481448a7bd90b407a0f31..6b8542e9ed447f80a2ed9a35e721aa12a99422ac 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
 image: centos:7
 
 before_script:
- - yum groupinstall 'Development Tools'
+ - yum -y groupinstall 'Development Tools'
 
 stages:
   - build