diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4eaa3db6662074f0e4a260478b550f5907638b3d..4c6b03f059c9ace7e0940bf5647166dbd4944f9e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -39,6 +39,7 @@ pages:
   rules:
     - if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH
   script:
+    - R -q -e 'devtools::install(dependencies = TRUE)'
     - R -q -e 'fairify::build_site()'
   artifacts:
     paths: