diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fab9e940928e11340f95f821e2d861a2af1e68c0..3a93f02e2c978fdf517c30691485a33a773c783b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ image: "python:3.8-slim"
 
 before_script:
   - apt-get update
-  - apt-get install build-essential
+  - apt-get install -y build-essential
   - apt-get install -y libcurl4-gnutls-dev
   - apt-get install -y zlib1g
   - apt-get install -y zlib1g-dev