diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 42d745c..6b28d70 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,6 +8,8 @@
 # Specify the docker image to use (only used if using docker runners)
 # See http://doc.gitlab.com/ee/ci/docker/using_docker_images.html)
 
+default:
+  image: rikorose/gcc-cmake
 stages:
 - test
 unit-test-job: