diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index eea3e6e..2d8bf43 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,8 @@ stages:
 .build:
     stage: build
     before_script:
-        - apt-get update && apt-get install -y build-essential exim4-dev libsodium-dev meson exim4-daemon-heavy pkg-config
+        - apt-get update
+        - DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt-get install -y build-essential exim4-dev libsodium-dev meson exim4-daemon-heavy pkg-config
     script:
         - meson build
         - cd build