diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e388abda28a4ca9d3118b7341180d9b1ad14cd6d..f36b4df47988d3806cd3b4667c18b8251772607a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,6 @@
 before_script:
     - apt-get update
-    - apt-get install -y -qq make gfortran cmake libboost-test-dev gem
+    - apt-get install -y -qq make g++-5 cmake libboost-test-dev gem
     - gem install funit
     - ./build.sh