diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 567f40355..5c8b0d9af 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,17 +1,21 @@
 before_script:
   - apt-get update -qq
-  - apt-get -y -qq install libhidapi-dev libcap-dev
+  - apt-get -y -qq install libhidapi-dev libcap-dev bubblewrap
   - wget https://github.com/ocaml/opam/releases/download/2.0.1/opam-2.0.1-x86_64-linux -O opam-2.0.1-x86_64-linux
-  - mkdir ~/opam-bin
-  - mv opam-2.0.1-x86_64-linux ~/opam-bin/opam
-  - export PATH="$HOME/opam-bin/opam${PATH:+:}${PATH:-}"
-  - opam init
-  - opam repository add jgb https://gitlab.com/gabriel.alfour/tezos-opam-repository.git
-  - eval $(opam env)
+  - cp opam-2.0.1-x86_64-linux /usr/local/bin/opam
+  - chmod +x /usr/local/bin/opam
+  - export PATH="/usr/local/bin${PATH:+:}${PATH:-}"
+  - echo "$PATH"
+  - printf '' | opam init
+  - eval $(opam config env)
+  - opam repository add tezos-opam-repository https://gitlab.com/gabriel.alfour/tezos-opam-repository.git
+  - eval $(opam config env)
+  - opam --version
+  - printf '' | ocaml
 
 default-job:
   script:
-    - opam install --working-dir .
+    - opam install -y --working-dir .
   artifacts:
     paths:
-      - parser.exe
+      - Parser.exe