diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8471ff08ac47a6678573e26ebed165c530c8b5a0..c10253568e723730c0d66ba2cd8fcd61df311804 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,8 +2,8 @@ image: "python:3.8-slim"
 
 before_script:
   - apt-get update
-  - apt-get install libcurl-dev
-  - apt-get install zlib1g
+  - apt-get install -y libcurl-dev
+  - apt-get install -y zlib1g
   - pip install coverage
   - pip install matplotlib==3.1.2
   - pip install pandas==1.0.3