diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0ffebf53ceaab45743f73f07eee881883eda8eaf..64e3591185e57432d08d557700c5b9b83ecc5100 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,7 @@ build:
   image: ubuntu:latest
   script: 
     - echo "installing clang"
-    - apt update && apt install clang-9 --install-suggests -y
+    - apt update && apt install clang-9 -y
     - echo "build done, clang installed"
 
 test: